What Are the Yoga Sutras?

The most famous book about yoga in the world contains almost no yoga in the sense the word now carries. Open the Yoga Sutras of Patanjali expecting postures and breathing routines, and you will read for pages without finding a single one. What you find instead is a precise, almost surgical account of the mind: how it moves, why it suffers, and how it can be brought to stillness. The second line of the text tells you what the whole thing is about, and it is not the body.

Yogash chitta-vritti-nirodhah. Yoga is the stilling of the fluctuations of the mind.

Everything the modern world has built on the word, the studios and the mats and the language of wellness, descends, however distantly, from this one austere book. It is worth meeting it as it actually is. The fuller story of how the disciplines fit together is told in What is Yoga; this article is about the text that gave the whole system its spine.

A few hundred lines that founded a school

The Yoga Sutras are short. About one hundred and ninety-six aphorisms, sutras, threads, each one compressed almost to the point of code, arranged in four chapters called padas. The first, the Samadhi Pada, is on absorption, the goal. The second, the Sadhana Pada, is on practice, the means. The third, the Vibhuti Pada, is on the powers that arise along the way. The fourth, the Kaivalya Pada, is on liberation, the end. A sutra is built to be memorised and unpacked by a teacher, not read like prose; the form itself assumes a living chain of transmission, a guru to open what the thread holds shut.

They are attributed to the sage Patanjali, and composed, most scholars agree, somewhere around the turn of the Common Era, with a range running from roughly the second century BCE to the fourth century CE. The dating is genuinely uncertain, and so is the man. Whether the Patanjali of the Yoga Sutras is the same Patanjali who wrote the Mahabhashya, the great commentary on Sanskrit grammar, is an old question the evidence has never settled; the claim that they are one person appears only much later, in Bhoja’s tenth-century gloss. The honest position is that we do not know who Patanjali was, or exactly when he lived. What survives is the work.

The definition that changes everything

The whole school turns on its second line, and it repays slow reading. Yoga is chitta-vritti-nirodha. Chitta is the mind-stuff, the entire field of mental activity, deeper than the surface thoughts. Vritti is its modifications, the endless waves of perception, memory, imagination, sleep and error that the mind throws up. Nirodha is their restraint, their settling. Still the waves, and something becomes visible that the waves had hidden. In Swami Vivekananda’s translation, made in 1896 when he carried this text to the West:

“Yoga is restraining the mind-stuff from taking various forms. At that time the seer rests in his own unmodified state.”

The seer is purusha, pure awareness. Ordinarily it is lost in the churning of the mind, identifying with every passing wave, taking itself to be the anger or the memory or the plan. When the churning stops, it rests in itself. That resting, and not a supple body, is what the text means by yoga. The relationship between that witnessing self and the ultimate reality is the subject of atman and Brahman; here it is enough to see that yoga, for Patanjali, is the work of clearing the mind until the witness stands free.

The reason this matters is that it relocates the whole enterprise. Yoga is not, in its founding text, a way to a better body or a calmer mood. It is a method aimed at liberation, the same goal the rest of the tradition calls moksha.

The frame it sits in: Samkhya

The Yoga Sutras do not float free. They are the practical wing of Samkhya, the oldest of the six classical philosophies, and they take over its picture of reality. There are two ultimate principles. Purusha is pure consciousness, the silent witness, many and unchanging. Prakriti is nature, the single creative substance out of which everything else unfolds, including the body, the senses and the mind itself. Bondage, in this scheme, is a case of mistaken identity: awareness, purusha, confusing itself with the churning of prakriti that it merely watches. Liberation is the clean discrimination of the two, the witness recognising that it was never the wave.

Samkhya supplies the diagnosis, the map of how consciousness got tangled in nature. Yoga supplies the cure, the actual technique by which the tangle is undone and the mind is stilled until the witness is disentangled. To this inherited frame Patanjali adds one element that strict Samkhya does without: Ishvara, the Lord, a special purusha never touched by bondage, surrender to whom, ishvara-pranidhana, he offers as one of the swiftest means. It gives the austere system a devotional door, the door the wider tradition develops into the love of a chosen deity, the ishta-devata.

The eight limbs

The heart of the practical teaching comes in the second chapter, where Patanjali names the path by which the mind is stilled. He calls it ashtanga, the eight limbs. They are, in order: yama, the ethical restraints, and niyama, the observances; asana, steady posture; pranayama, the regulation of the breath; pratyahara, the withdrawal of the senses; and then the inner three, dharana, dhyana and samadhi, concentration deepening into absorption.

The word anga means limb, not step, and the choice is deliberate. These are limbs of one body, working together, not a ladder whose lower rungs are kicked away. Each, given its own treatment on this site, supports the others: the yamas and niyamas lay the ethical ground, pranayama steadies the breath, pratyahara turns the senses inward, and the inner three carry the mind into absorption. The path begins with conduct, with how a person treats the world, well before it touches the body.

It is worth pausing on what is almost absent here. Asana, the posture that the modern world takes to be the whole of yoga, receives three short aphorisms (2.46 to 2.48), and in them it means simply a seat that is steady and comfortable, sthira-sukham asanam, held without strain for the long work of meditation. The vast architecture of standing poses and sequences that fills studios today is overwhelmingly a development of the last century or so. In Patanjali, the body is settled in one good seat precisely so that it can be forgotten and the mind worked on.

The text and its commentary

A bare sutra is almost unusable on its own; it is a knot of meaning waiting to be untied. So the Yoga Sutras have never travelled alone. The oldest and indispensable commentary is the Yoga Bhashya attributed to Vyasa, written perhaps in the fourth or fifth century, and treated by the tradition as practically inseparable from the root text; to read Patanjali is, in practice, to read Patanjali through Vyasa. On top of that sits a layer of sub-commentary, above all Vachaspati Mishra’s ninth-century gloss, the Tattva-Vaisaradi. Much of what we confidently say the Sutras “mean” is in fact what this commentarial tradition drew out of them.

In the modern period one more figure shaped how the text is read, especially outside India. Swami Vivekananda’s Raja Yoga, published in 1896, translated and explained the Sutras for a Western audience and effectively introduced Patanjali’s “royal yoga” to the world, framing it as a rational, experimental science of the mind. A great deal of the global understanding of the Yoga Sutras, for better and worse, runs through that book.

What the text is not

Because the modern associations are so strong, it helps to say plainly what the Yoga Sutras are not. They are not a manual of physical exercise. They are not the same thing as hatha yoga, the later body-centred tradition of postures, cleansings and locks, which has its own texts a thousand years younger. They are not the modern “Ashtanga” of vigorous posture sequences, which borrows Patanjali’s word for the eight limbs and applies it to something he would not recognise. And Patanjali did not invent yoga: the disciplines he describes run back through the Upanishads and the Bhagavad Gita and older still, into the ascetic currents of ancient India. What he did was gather a sprawling, living tradition into a single ordered system so exact that every later school of yoga has had to argue with it or build on it.

Why it still governs

Read the Yoga Sutras once and the modern picture quietly inverts. Yoga is not a thing you do with your body to feel better. It is a science of stilling the mind until what watches the mind is finally free, a discipline that begins in how you live and ends, in the text’s own final word, in kaivalya, the aloneness of consciousness liberated from nature. The body has a part, a steady seat, but only a part, and a small one.

That is why the book has lasted. In two hundred lines it set out a complete path, ethics to absorption, and described the mind with an exactness that still holds. Every serious tradition of yoga since has been, in one way or another, a footnote to it.

The waves settle. The seer remains.