नात्यश्नतस्तु योगोऽस्ति न चैकान्तमनश्नतः | न चातिस्वप्नशीलस्य जाग्रतो नैव चार्जुन ||१६||
nātyaśnatas tu yogo'sti na caikāntam anaśnataḥ | na cātisvapnaśīlasya jāgrato naiva cārjuna || 16 ||
Yoga fails for those who eat or fast to excess — and equally for those who sleep too much or too little. Regulate.
Word by word (3)
- na ati-aśnataḥ yogo'sti
- — yoga is not for the one who eats too much · ati (excessive) + aśnataḥ (of the one who eats, from √aś). yogo'sti = yoga exists/is possible. Overeating (ati-āhāra) dulls the mind, creates heaviness, and promotes tamasic states — the opposite of the alert yet relaxed state required for meditation. The classical teaching (Yoga Sūtra and Āyurveda both agree): a half-full stomach is optimal for practice — enough to sustain, not so much as to cloud.
- na ca ekāntam anaśnataḥ
- — nor for the one who fasts completely · ekāntam = utterly, absolutely. anaśnataḥ = of the one who does not eat. Complete fasting creates weakness, agitation (vāta disturbance in Āyurvedic terms), and an inability to sustain the sustained attention required for deep practice. The Buddha famously discovered this: middle path between extreme asceticism and excessive indulgence is what actually works. V16 is the Gita's version of that discovery.
- na ati-svapna-śīlasya / jāgrataḥ naiva
- — not for the one who sleeps too much / nor for the one who stays awake too long · ati-svapna-śīla = habitually over-sleeping. jāgrata = staying awake (from √jāgṛ, to be awake). The sleep dimension parallels the food dimension: too much sleep = tamasic dullness (the mind is heavy, practice is impossible); too little sleep = rajasic agitation (the mind is too turbulent for meditation). Both extremes destroy the conditions for the subtle, alert-yet-settled quality that meditation requires. The V16 principle: moderation and regulation of the body's basic rhythms — eating, sleeping, waking — is the foundation of a sustainable practice.
Yoga is not possible for the one who overeats OR the one who fasts completely — and equally not for the one who sleeps too much OR the one who keeps awake too long. The implication: effective yoga practice requires the regulation of the body's two most basic rhythms — food and sleep.
A modern analogy
Think of a high-performance engine: it needs the right amount of fuel (not too rich, not too lean) and the right maintenance schedule (adequate downtime, not over-revved). An overfuelled engine floods; an under-fuelled engine stalls. An over-rested engine never warms up; an overworked engine burns out. V16 is the Gita's maintenance manual for the human system as a vehicle for yoga practice.
What it does NOT mean
V16 does NOT mean yoga requires perfect diet and sleep before you can start. It means: as you deepen your practice, pay attention to these two levers. Gradually regulate. The extremes are the enemies of practice — not occasional imperfection.
Take with you
- Food: the classical guideline (from Swarupananda's footnote on this verse): half the stomach for solid food, one quarter for liquid, one quarter left empty. For meditation, eat your last significant meal at least 2-3 hours before sitting.
- Sleep: 6-8 hours of regular, consistent sleep is the practical equivalent of V16's middle path. Irregular sleep patterns (staying up very late, then compensating with long sleep) create exactly the tamasic/rajasic alternation that destroys practice quality.
- Both principles apply to any intense work, not just meditation. Athletes, artists, and thinkers have all discovered V16's principle independently: extremes of any basic bodily rhythm impair the quality of the work.
V16 appears immediately after V15's description of nirvāṇa-peace — a deliberate descent from the sublime to the practical. After stating the highest fruit, Krishna grounds the teaching in the most basic physical conditions. This is pedagogically brilliant: the highest spiritual state is shown to depend on the most mundane disciplines. The Gita's pragmatism refuses to separate 'spiritual practice' from 'how you eat and sleep.' V16 is also implicitly a critique of the extreme asceticism (tapas) traditions of Krishna's time: fasting to the point of starvation and sleep deprivation as spiritual practices are rejected here in favour of the middle path that V17 will elaborate.
Advaita lens
The Advaita reading of V16 notes that the body (sthūla śarīra) and the prāṇic body (prāṇamaya kosha) are the vehicles for the ātman's expression in the world. Abusing or neglecting these vehicles impairs the ātman's capacity to express itself clearly through the human instrument. Self-care is therefore not selfishness — it is the care of the Divine's vehicle.
Bhakti lens
The bhakta cares for the body as a gift from the Divine — the temple in which the Divine resides. Neither starving the temple nor flooding it with indulgence. V16's middle-path care is the bhakta's act of loving maintenance of what has been given.
Karma-Yoga lens
The karma yogi who neglects food and sleep cannot act clearly, compassionately, or sustainably in the world. V16 is the karma yoga sustainability principle: you cannot serve the world from an depleted instrument. Care for the vehicle is part of karma yoga, not a distraction from it.
Modern parallels
Modern performance science (applied to athletes, executives, and creative workers) has converged on V16's insight with remarkable precision: sleep deprivation, irregular eating, and extreme caloric restriction all measurably degrade cognitive function, emotional regulation, and decision quality. The 'sleep science' revolution of the last 20 years (Matthew Walker's work, for example) is a detailed scientific elaboration of V16's first principle: you cannot sustain the quality of yoga/practice without adequate sleep.
Practice
Before your next practice session, conduct a quick body audit: How much did I eat in the last 3 hours? How did I sleep last night? Rate each on a simple 1-3 scale (1=extreme, 2=moderate, 3=balanced). If either is '1', lower your expectations for this session and accept whatever arises without judgment. You are working with V16's constraints today. That's okay.
Public-domain translations (6) compare all →
Yoga is not for the one who eats too much, nor for the one who fasts completely, nor for the one who sleeps too much, nor for the one who stays awake too long. [1]
Success in Yoga is not for him who eats too much or too little — nor, O Arjuna, for him who sleeps too much or too little. [4]
Yoga is not for him who eateth too much, nor for him who eateth too little; nor for one who sleepeth too much, nor for one who keepeth too long awake, O Arjuna. [5]
This Yoga is not for the man who eats too much or too little, nor for him who sleeps too much or too little. [6]
This Yog is not for him who eateth overmuch, nor for the faster; not for him who sleepeth overmuch, nor for the ever-watchful. [7]
This concentration is not for him who eats too much, nor who eats too little, nor who sleeps too much, nor, O Arjuna, who watches too long. [9]
This verse speaks to
Where this thread continues
Practising thus always, with a controlled mind — the yogi reaches the supreme peace of nirvāṇa, abiding in the Supreme.
Regulate food, recreation, effort and sleep — and yoga becomes the destroyer of all pain.
Sāttvic food enhances life, sattva, strength, health, joy, delight — savoury, oleaginous, substantial, heart-pleasing.
Greed, restless activity, and longing surge — know that rajas is predominant and karma-saṅga is binding.
Bodily tapas: honouring Devas/dvija/guru/wise; purity, straightforwardness, brahmacarya, non-injury.
Supreme bliss comes naturally to the yogi whose mind is fully at peace, passion quieted, stainless — Brahman-become.