Fasting and meditation: how to pray and meditate while fasting

Practical methods for personal transformation, drawn from direct experience, Christian monks, Buddhist teachers, Taoist philosophers, and ancient Indian texts.

Nathan Voisey··19 min read

Most people begin fasting by deciding not to eat. The instructions are simple enough.

The interesting part begins when lunchtime arrives.

You notice you’re hungry. Then you begin thinking about food. Then you notice that you’re thinking about food. Before long, you’ve spent fifteen minutes considering a sandwich you weren’t planning to eat.

That’s when fasting can become more interesting than simply going without food.

For thousands of years, people have deliberately combined fasting with prayer, meditation, contemplation, and spiritual practice. Christian monks, Buddhist practitioners, Taoist philosophers, and Indian yogis developed methods for working with hunger, desire, distraction, and the mind’s tendency to wander.

They weren’t all seeking the same result. Some wanted communion with God. Others sought freedom from attachment, greater awareness, personal transformation, or the ability to experience life without constantly interpreting it.

But they shared an important observation: the experience of wanting something without immediately satisfying that desire provides an opportunity to examine how the mind works.

Fasting changes what we’re experiencing. Prayer and meditation can change how we relate to that experience. They can also be used to deliberately cultivate different thoughts, emotions, responses, and ways of being.

Here are five approaches, beginning with a method I’ve developed through my own experience with extended fasting, followed by techniques drawn from traditional contemplative practices.

1. Why combine fasting with prayer or meditation?

Fasting interrupts a familiar activity. Most of us have spent our lives eating when meals arrive, responding to hunger, and occasionally visiting the refrigerator without consciously remembering why we went there.

Remove food for a while and these patterns become easier to notice. Hunger appears. Thoughts arise. You might feel restless, unusually alert, peaceful, or distracted.

None of these experiences is guaranteed, but they provide something immediate to work with.

Modern physiology offers limited explanations for changes in alertness. In 2003, research showed that fasting activates orexin-related arousal mechanisms in mice that help regulate wakefulness and food-seeking behaviour. Humans sometimes describe a similar sense of alertness while fasting, though this does not establish improved meditation.

A 2025 meta-analysis of cognitive performance across 3,484 participants found that short-term fasting produced no meaningful advantage or disadvantage on standardized tests, with some modest declines during longer periods. The median fasting duration was only twelve hours, so the findings tell us little about cognition during extended fasting.

Fasting does not automatically make people smarter, calmer, or more spiritually receptive. But it can change the circumstances in which they practice. That is enough to make the combination interesting.

The following methods approach the opportunity in different ways.

Practice What you do What you’re developing
Intention-directed meditation Hold a desired outcome in awareness and allow your internal experience to change around it Personal transformation, emotional freedom, alignment
Christian contemplative prayer Return attention repeatedly to a short prayer or the presence of God Recollection, devotion, steadiness
Buddhist mindfulness Observe sensations, feelings, and desires without automatically reacting Awareness, equanimity, insight
Taoist meditation Release preoccupations, judgments, and the need to control experience Receptivity, stillness, nonattachment
Yogic concentration Sit steadily and direct attention toward a chosen contemplative focus Concentration, balance, self-discipline

There is no need to practice all five. Choose the approach that interests you, or experiment with different methods to discover what you find useful.

2. Intention-directed meditation: using fasting for personal transformation

This is a method I’ve developed through extended fasting. Rather than simply observing thoughts or returning attention to prayer, its purpose is to deliberately change internal experience.

You might want greater confidence, inner peace, courage, clarity, or self-control. Or you might want to release fear, resentment, repetitive negative thinking, or an unwanted emotional reaction.

The distinction is that you are not merely contemplating the possibility of change. You are directing attention toward experiencing the desired outcome as an internal reality.

In my experience, this process often becomes more effective from approximately Day 3 of an extended fast onward. The fasting state seems to make it easier for a clearly held intention to translate into changes in thoughts, emotions, physical sensations, and habitual responses.

Step 1: choose your intention

Before beginning the fast, decide what you want to change. Focus on the outcome you want to experience rather than the problem you want to eliminate.

Instead of concentrating on getting rid of anxiety, focus on experiencing calmness, confidence, and freedom. Instead of trying to eliminate resentment, focus on experiencing genuine peace with the person or situation. Instead of trying to stop being afraid, focus on the freedom and confidence you would experience without that fear.

Be as clear as possible about the result.

Step 2: observe your existing patterns

During the first few days, notice the thoughts, emotions, beliefs, and physical responses associated with the issue. How do you currently experience it? What thoughts appear? What emotions accompany them? Where do you feel the reactions in your body? How do they influence your behaviour?

Don’t fight these experiences or attempt to force them away. Simply become familiar with what you are currently experiencing. The purpose is to recognize existing patterns without becoming consumed by them.

Step 3: focus on your desired outcome

Around Day 3 of an extended fast, aligning intention with internal experience can become more powerful. During meditation or prayer, hold your desired outcome clearly in awareness.

Rather than merely thinking about what you want, experience what it would actually be like to have achieved it. How would you think? How would you feel? How would your body respond? How would you move through the world?

If you don’t know what that experience would be like, ask for guidance according to your spiritual outlook, or simply hold the intention as clearly as possible. Visualization is helpful but not essential. Clarity of intention matters more than the ability to create mental pictures.

In my experience, the more completely you can define the desired outcome—including how you would think, feel, move, and behave—the faster the internal change seems to occur. If you cannot form a mental image, simply hold the intention. The process may take longer, but visualization is not required.

Step 4: allow the inner reorganization

As you maintain your intention, you may experience changes in thoughts, feelings, memories, physical sensations, or a sense of energy moving through the body. It can feel as though the mind-body system is reorganizing around the new intention.

Thoughts may arise and disappear. Emotions may intensify, change, or dissolve. Physical sensations may shift. New perspectives or unexpected realizations may appear.

Don’t interfere with the process. Don’t try to analyze every sensation or consciously decide how each change must happen. Maintain your intention and allow the experiences to unfold. You are establishing the direction, not micromanaging every internal adjustment.

Step 5: allow your behaviour to change

Intention works on your inner world. It does not rearrange external circumstances on your behalf. As your inner experience changes, you may find yourself thinking, feeling, moving, and responding differently.

Go with those changes. If you become more confident, act with confidence. If resentment disappears, stop organizing your relationships around it. If a longstanding fear loses its influence, take the action you’ve been avoiding.

There’s little point in doing the inner work and then insisting on living exactly as you did before.

Step 6: continue after the fast

When you resume eating, notice what’s different. Some changes may feel immediate. Others may develop as you respond to ordinary circumstances in new ways. Continue acting in accordance with your desired outcome.

The fasting period may provide an opportunity for internal change. Living differently is how you give that change a practical place in your life.

This method emphasizes the actual internal experience of the desired outcome rather than visualization alone or repeated affirmations. The amplification sometimes noticed after several days of fasting is a personal observation, not a scientifically established effect. The method itself can also be explored outside a fast.

3. Christian prayer: turn hunger into a reminder

John Cassian and the prayer that never ends

In the early fifth century, Christian monk John Cassian recorded teachings from the Egyptian Desert Fathers. These monks combined work, prayer, solitude, and restricted eating.

In Conferences, particularly Conference 10, Cassian describes a method of continuous prayer using a single verse from Psalm 70:1:

“O God, make speed to save me: O Lord, make haste to help me.”

The verse becomes a point of return throughout the day—while working, walking, preparing for sleep, or experiencing distraction.

Cassian specifically addresses the temptation to eat before the appointed mealtime. His solution is straightforward: pray. Rather than allowing hunger to become the central concern, use it as a reminder to return attention to God.

How to practice Cassian’s method

Begin with five or ten minutes of quiet sitting. Choose the traditional verse or another short prayer appropriate to your faith. Repeat it slowly, silently or aloud.

When thoughts interrupt, return to the prayer. When hunger appears, return to the prayer. When you notice yourself planning dinner, return to the prayer.

You don’t need to force hunger away or manufacture a particular emotional state. The objective is to develop the habit of returning attention to something more important than the distraction of the moment.

Continue using the prayer during ordinary activities. A walk, household task, or quiet moment between responsibilities becomes another opportunity for practice. The sensation that would normally send you toward the kitchen can become a cue for contemplation.

Cassian also understood the limits of physical austerity. In Institutes, Book V, he warned that excessive fasting could weaken the body so much that prayer itself suffered. For him, fasting supported prayer. It was not a competition in deprivation.

Evagrius: prayer without chasing visions

Evagrius Ponticus took the practice in a more contemplative direction. In On Prayer, he describes quieting the mind and releasing distracting thoughts and passions. He particularly warns against constructing images of God or becoming fascinated with unusual mental experiences.

This is useful advice during fasting. Some people report unusual clarity, strong emotions, vivid imagery, or heightened awareness. It’s tempting to interpret every unfamiliar sensation as a spiritual breakthrough. Evagrius encouraged restraint.

Sit quietly for ten to fifteen minutes. Set aside ordinary concerns. Allow thoughts to settle without following every one. If a vivid image or unusual feeling appears, don’t make it the objective. Return to simple prayer and attentive presence.

The point is not to produce a remarkable experience. It is to become less distracted by the desire to have one.

4. Buddhist meditation: make hunger the object of awareness

Buddhist meditation invites investigation of the experience itself rather than redirecting hunger toward prayer.

The Satipaṭṭhāna method

The Satipaṭṭhāna Sutta (Majjhima Nikāya 10) describes mindfulness of the body, feelings, mental states, and other phenomena. One central instruction is recognizing whether a feeling is pleasant, unpleasant, or neutral.

This offers a practical method for working with hunger. When you begin to feel hungry, take a few minutes to examine it.

Sit comfortably and bring attention to the body. Where do you actually feel hunger? Notice the sensation—perhaps a hollow feeling, contraction, or pressure—without immediately describing it as something terrible.

Then observe what happens in the mind. Does an image of food appear? Do you begin thinking about the next meal? Is there impatience, irritation, anticipation, or nothing particularly dramatic?

Notice the difference between the physical sensation and the thoughts surrounding it. Then return to the body and watch what changes.

This is a contemporary application of the sutta’s instructions to hunger, not a special fasting procedure prescribed by the text.

The difference between hunger and wanting food

Physical hunger is a sensation. Wanting food includes thoughts, expectations, memories, habits, and imagined pleasures. They often appear together, but they are not identical.

Someone can experience physical hunger without being particularly interested in eating. Someone else can finish a substantial meal and still want dessert. Mindfulness allows observation of those processes separately.

You might discover that the sensation itself is not especially unpleasant, but the thought of not being allowed to eat is irritating. Or the body may feel comfortable while the mind keeps visiting the refrigerator.

The practice is not to prove that hunger doesn’t exist. It is to see the experience more clearly—and that clarity is useful well beyond fasting.

Breathing meditation during fasting

The Ānāpānasati Sutta (Majjhima Nikāya 118) provides another practical method. Sit with an upright but relaxed posture. Allow breathing to occur naturally. Notice each inhalation and exhalation. Become aware of whether the breath is long or short, then gradually widen attention to include the body as a whole.

As the body settles, notice the condition of the mind. If hunger arises, recognize it without abandoning the practice. If attention wanders, gently return to breathing.

Ten to twenty minutes is enough for a useful experiment. There is no requirement to breathe unusually slowly or manipulate the breath. You are observing, not performing.

Buddhist texts emphasize moderation in food. Eating should support the body and the practice. The aim is awareness, not physical depletion that makes meditation impossible.

5. Taoist meditation: fast from thoughts

One of the most interesting discussions of fasting appears in the Zhuangzi, and it is not primarily about food.

The fasting of the mind

In Chapter 4, Yan Hui asks Confucius for guidance. Confucius tells him to fast. Yan Hui replies that he already lives with considerable dietary restriction. Confucius responds that he means something different: xinzhai, commonly translated as fasting of the heart-mind.

The teaching moves beyond ordinary sensory attention and conceptual thinking toward an empty, receptive awareness. Instead of constantly interpreting experience, the practitioner becomes available to experience it more directly.

You can stop eating while remaining completely occupied with thoughts about food. In that case, the stomach may be fasting, but the mind is having a banquet. Taoist mental fasting takes the practice in another direction: what happens if you stop constantly feeding the mind with judgments, plans, worries, opinions, and explanations?

How to practice fasting of the mind

Sit comfortably somewhere quiet. Allow the body to settle. Begin by noticing sounds, sensations, and the general environment.

Ordinarily, the mind immediately starts identifying and interpreting. A passing car becomes a thought about traffic. A sound in another room becomes a question about what someone is doing. An uncomfortable sensation becomes something that needs to change.

For this exercise, allow experiences to arise without following them into explanations. Hear the sound without needing to name its source. Feel a sensation without immediately deciding whether you like it. Notice a thought without needing to finish it.

If hunger appears, allow it to be another part of the present experience. There is no need to turn it into a story about how successfully you are fasting.

Practice for ten or fifteen minutes. The intention is not to force the mind into absolute silence—trying to eliminate every thought can become another elaborate mental activity. Instead, practice becoming less occupied with what the mind continually produces.

Sitting in forgetfulness

Chapter 6 of the Zhuangzi describes a related practice called zuowang, or sitting in forgetfulness. It points toward freedom from constant self-reference.

In a modern exercise, sit quietly and notice how frequently the mind relates everything back to itself: my hunger, my discomfort, my thoughts, my progress, my meditation.

For a few minutes, allow experience to exist without repeatedly organizing it around the idea of yourself. Sounds occur. Breathing occurs. Sensations arise and pass. There is nothing in particular to accomplish, and no need to maintain a running commentary on how well you are accomplishing nothing.

This is perhaps the most distinctively Taoist lesson here. The practice is not necessarily about strengthening self-control. It may be about relaxing the need to control everything in the first place.

6. Indian yoga: concentration without excess

The Bhagavad Gita (Chapter 6) describes meditation through steadiness of posture, regulated attention, and disciplined living. Verses 6.11–15 discuss establishing a suitable seat and concentrating the mind. Verses 6.16–17 add an important qualification: yoga is not supported by either excessive eating or extreme abstinence as a general rule. Moderation in food, activity, sleep, and wakefulness supports the practice.

This is a useful counterbalance to the assumption that an increasingly severe fast must produce increasingly profound meditation.

How to practice concentration

Choose a quiet place and sit comfortably upright. Relax unnecessary tension. Select a contemplative focus appropriate to your practice—a sacred name, a mantra, or simple awareness of the divine or the self.

Bring attention to that focus. When the mind wanders, return. When hunger arises, notice it and return. If you feel unusually alert, use the opportunity to practice steadiness rather than treating the alertness itself as an achievement.

Continue for ten to twenty minutes. The exercise develops the ability to direct attention deliberately. Fasting may occasionally make that ability feel easier or more challenging, depending on the person and circumstances. The practice remains the same.

The central lesson is sensible: bodily discipline should support spiritual discipline, not undermine it.

7. Putting the methods into an ordinary fasting day

You don’t need a retreat, a monastery, or a week without food to begin. An ordinary overnight fast provides a reasonable opportunity.

The intention-directed method can also be practiced during shorter fasts, though personal experience suggests that longer fasting, particularly from around Day 3 onward, may provide a more pronounced subjective experience of internal change.

Suppose you finish dinner at 7 PM and plan to eat again at 11 AM the next morning.

When What to practice
Before beginning the fast Choose an intention or decide which method you’ll practice
Morning, before eating Spend 10–15 minutes focusing on your desired outcome, praying, or meditating
When hunger first appears Notice bodily sensations and the thoughts accompanying them
At your usual breakfast time Return to your intention, read a spiritual text, or reflect briefly
During ordinary activities Return periodically to your chosen intention, prayer, mindful breathing, or receptive awareness
Before your first meal Notice what has changed in your experience, then eat normally
That evening Reflect on your thoughts, emotions, reactions, and actions throughout the day

The idea is not to schedule every available moment. It is to use the interruption of the ordinary eating routine as an opportunity to practice something worthwhile.

What should you focus on?

If using intention-directed meditation, choose an internal outcome that would meaningfully improve your life—releasing an old fear, experiencing greater peace or confidence, or stopping a negative reaction to a particular person or situation.

Define the outcome as clearly as possible. Experience it internally if you can. If you can’t visualize it, simply maintain the intention. Allow whatever arises to change without managing the process. Then notice whether your behaviour begins changing in accordance with your intention.

What should you pray about?

Choose something meaningful before beginning—guidance about a difficult decision, greater patience, or understanding an attachment or resentment differently.

Begin with a simple intention and return to it through prayer. Leave room for quiet. Prayer does not always need to become a lengthy conversation in which you do all the talking.

What should you meditate on?

Hunger itself can be a useful starting point. Other possibilities include impatience, the mind’s tendency to plan the next meal, the difference between feeling something and needing to do something about it, or simply sitting quietly without trying to improve the experience.

Sometimes the most interesting discovery is how much effort is normally spent trying to make an ordinary moment different from what it is.

How do you know whether it worked?

You don’t need a spreadsheet measuring spiritual clarity every fifteen minutes. A few simple questions are more useful:

  • Did you notice your reactions more clearly?
  • Were you able to return attention when distracted?
  • Did you experience a change in the thoughts, emotions, or physical responses associated with your intention?
  • Did you discover something about how you respond to desire, boredom, impatience, or discomfort?
  • Are you beginning to think, feel, and act in accordance with the change you wanted?

You might also discover that fasting made concentration harder. That is useful information too. The purpose is direct experience, deeper spiritual practice, or meaningful internal change.

Conclusion: fasting creates the opportunity. Practice gives it direction.

Across these approaches, the methods differ, but they share an important insight.

Fasting interrupts the ordinary pattern of life. Hunger becomes more noticeable. Eating habits become visible. The mind reveals how often it reaches for stimulation, comfort, distraction, or relief.

What happens next depends on what we do with that experience.

Intention-directed meditation uses the fasting experience as an opportunity to cultivate a desired internal reality. Cassian would return to prayer. A Buddhist practitioner might investigate the sensation and the desire surrounding it. A Taoist might release the need to interpret and control the experience. A yogi might use the period to cultivate concentration and steadiness.

None of these practices requires extreme fasting to begin. An ordinary morning before breakfast can provide plenty to work with. Longer fasting may introduce experiences that some people find particularly valuable for contemplation and personal change.

Whatever happens during the fast, the greater opportunity lies in what happens afterward.

Someone who learns to notice hunger without automatically responding may become better at noticing impatience, irritation, worry, or other habitual reactions. Someone who practices returning to prayer may discover that ordinary activities provide opportunities for spiritual attention. Someone who learns to sit quietly without constantly evaluating experience may find everyday life a little less demanding. And someone who uses intention to cultivate a different internal experience may discover new ways of thinking, feeling, and acting.

Perhaps that is the most useful way to combine fasting with meditation: not merely to endure hunger or chase an extraordinary state of consciousness, but to use the experience deliberately.

The absence of food creates a little space. Prayer, meditation, and intention give that space direction. And what you do afterward determines how much of that experience becomes part of your ordinary life.

Research and references

Christian contemplative practices

  1. John Cassian — Conferences, Conference 10, Chapter 10: Of the Method of Continual Prayer. Practical instruction for repeated prayer during ordinary activities, hunger, and distraction. https://www.newadvent.org/fathers/350810.htm

  2. John Cassian — Institutes, Book V: Of the Spirit of Gluttony. Especially Chapters 5, 8–10, and 21, concerning fasting, moderation, prayer, and the discipline of the mind. https://www.newadvent.org/fathers/350705.htm

  3. Evagrius Ponticus — On Prayer (De Oratione). Especially Chapters 64–71 concerning imageless prayer, distraction, and mental stillness. https://catholiclibrary.org/library/view?chunk.id=00000013&docId=Fathers-Synchronized-EN%2FEvagrius_Ponticus__De_oratione.en.html

Buddhist meditation

  1. Majjhima Nikāya 10 — Satipaṭṭhāna Sutta: The Establishing of Mindfulness Discourse. Meditation on the body, feelings, and mental states. Translation by Ṭhānissaro Bhikkhu. https://www.dhammatalks.org/suttas/MN/MN10.html

  2. Majjhima Nikāya 118 — Ānāpānasati Sutta: Mindfulness of Breathing. Instructions for developing awareness through breathing. Translation by Ṭhānissaro Bhikkhu. https://www.dhammatalks.org/suttas/MN/MN118.html

  3. Majjhima Nikāya 107 — Gaṇakamoggallāna Sutta: To Gaṇaka Moggallāna. Gradual spiritual training, including moderation in eating and mindful vigilance. https://www.dhammatalks.org/suttas/MN/MN107.html

Taoist meditation

  1. Zhuangzi — Chapter 4: Man in the World, Associated With Other Men. The original xinzhai, or fasting-of-the-mind, dialogue. Chinese Text Project, James Legge translation. https://ctext.org/zhuangzi/man-in-the-world-associated-with

  2. Zhuangzi — Chapter 6: The Great and Most Honoured Master. The zuowang, or sitting-in-forgetfulness, passage. Chinese Text Project, James Legge translation. https://ctext.org/zhuangzi/great-and-most-honoured-master

  3. Sima Chengzhen — Zuowanglun: Discourse on Sitting in Forgetfulness. Later Taoist development of systematic contemplative practice. Chinese Text Project. https://ctext.org/wiki.pl?if=en&remap=gb&res=270447

Indian meditation

  1. Bhagavad Gita — Chapter 6, Verses 10–17. Meditation instructions and moderation in food, activity, and sleep. IIT Kanpur’s Bhagavad Gita textual collection. https://heritage.iitk.ac.in/SBG/section/4132/read

Modern scientific research

  1. Yamanaka, A. et al. (2003). Hypothalamic Orexin Neurons Regulate Arousal According to Energy Balance in Mice. Neuron, 38(5), 701–713. https://doi.org/10.1016/S0896-6273(03)00331-3

  2. Bamberg, C. & Moreau, D. (2025). Acute Effects of Fasting on Cognitive Performance: A Systematic Review and Meta-Analysis. Psychological Bulletin, 151(9), 1147–1169. https://doi.org/10.1037/bul0000492

  3. Bamberg, C., Reichenberger, J. & Blechert, J. (2026). Stable Cognitive Performance While Adapting to Intermittent Fasting: A Randomised Controlled Trial. Journal of Health Psychology, 31(4), 1362–1377. https://doi.org/10.1177/13591053251351204

Medical note

This series is educational journalism, not personalized medical advice or a protocol for extended fasting. Prolonged fasting can have serious risks, particularly with chronic illness, certain medications, malnutrition, or abnormal electrolytes, and warrants professional medical supervision.

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Written by
Nathan Voisey

A curious person with an internet connection, a growing library, an unfortunate tolerance for very long research rabbit holes, and a desire to understand things properly.

Fasting

A series in 10 parts. See the whole series.

  1. Part 1What is fasting? What happens when you stop eating?
  2. Part 2How to fast: a practical guide from 16 hours to longer periods
  3. Part 3Fasting and meditation: how to pray and meditate while fastingyou are here
  4. Part 4The three-day fast: what happens during 72 hours without food?
  5. Part 5The seven-day fast: what happens during a week without food?
  6. Part 6Fasting beyond seven days: the limits of the human body
  7. Part 7Modified fasting: what happens when you eat a little during a fast?
  8. Part 8Prolonged fasting: the people who pushed its limits
  9. Part 9Why humans fast: religion, history, and the meaning of going without
  10. Part 10How fasting changed their lives: ten remarkable transformations

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