What is Yama?
In Patañjali's Yoga Sūtras, yama names the first of eight limbs: five ethical restraints directed toward other beings and the world. The five are ahiṃsā (non-injury), satya (truthfulness), asteya (non-stealing), brahmacarya (continence), and aparigraha (non-grasping). Patañjali calls them mahāvratam, the great vow, and holds them to be binding regardless of birth, place, time, or circumstance.
Yama, niyama, and sīla
Yama is paired with niyama in the Yoga Sūtras. The two together form yoga's ethical foundation. Yama governs conduct toward others and the world; niyama governs the practitioner's own habits and inner disciplines. The yamas also overlap with Buddhist sīla — both sets include non-harm, truthfulness, and non-stealing — but they sit within different doctrinal systems and do not map neatly onto each other. Where Western ethics tends to ask what the right action is, the yamas ask what conditions make the inner work of yoga possible. The questions are related but not identical.
The five restraints
The Yoga Sūtras of Patañjali (II.30) name five yamas. Ahiṃsā (non-injury) heads the list. The classical commentary treats it as the root from which the other four unfold: a commitment not to harm in thought, word, or deed, toward other beings and the practitioner's own body. Satya (truthfulness) is paired with ahiṃsā in the text's logic. The practitioner's speech and action must track what is true, with one qualification: truth may not be weaponised against another person. Where the two pull against each other, ahiṃsā governs. Asteya (non-stealing) is broader than the prohibition on theft of objects. It covers anything taken without being given, including the time, attention, or labour of others. Brahmacarya (continence) is the discipline of sexual energy. The text treats this as one of the most volatile forces available and holds that careful conservation of it, in the householder no less than in the renunciate, is structural to the inner work. Aparigraha (non-grasping) names the willingness to live without accumulating objects, relationships, or experiences as defences against impermanence. The Sūtras attach a specific power (siddhi) to deep cultivation of each: settled ahiṃsā dissolves enmity in those who approach; settled satya makes the practitioner's words structurally effective; settled asteya draws what is needed; settled brahmacarya generates uncommon vitality; settled aparigraha yields direct knowledge of the conditions under which the present birth was acquired. These promises read as fanciful to the modern reader. In the lineage's own account, they indicate the depth at which the practice operates rather than advertising rewards.
First limb, not optional foreword
The eight-limb path is not a strict sequence. Patañjali himself does not require completing yama before approaching the other limbs. But placing the yamas first carries a working claim: the inner work the later limbs name is held in place by the conditions of life the yamas describe. Without them, the practice has nowhere stable to land. The text is clear that the yamas are mahāvratam, the great vow, and jāti-deśa-kāla-samaya-anavacchinnāḥ, unconditioned by birth, place, time, or circumstance. The practitioner does not commit to non-injury except in war, or to truthfulness except when inconvenient. The categorical form of the commitment is itself part of what the limb does. In practical terms, the yamas are the soil in which āsana, prāṇāyāma, and pratyāhāra take root, along with the inner limbs of saṁyama. A yoga practice without them — and a contemporary studio class is generally without them — is the third limb operating on its own. Useful for the body, but disconnected from the work the eight-limb architecture was designed to serve.
Where to encounter it
Sadhguru's *Inner Engineering* treats yama and niyama as part of the operating curriculum rather than as historical preamble. The book grounds the five restraints in the Śaiva yogic stream that runs alongside the textual Sūtra commentary tradition. The Inner Engineering Online course carries the same instruction into practice. Sadhguru's longer-form lectures, his talk on disability and spiritual practice, and the talk on unlocking the mind's full potential make the yama commitments operative without always naming the Sanskrit. The recurring move is to treat ethics not as imposed rule but as the conditions under which the inner experiment can be run honestly. Paramahansa Yogananda's *Autobiography of a Yogi* belongs to the parallel kriyā lineage and treats the eight-limb architecture — yama and niyama included — as the operating system on which the more esoteric techniques run. The ahiṃsā entry is the deepest single companion to this one: the first yama is the root from which the others unfold, and it is the yama the index treats most fully on its own.
What yama isn't
The yamas are not a checklist to tick off before practice begins. They are an ongoing discipline. The Sūtras treat them as commitments held under refinement across the practitioner's whole life, and they are not enforced from outside. Nor are they Western moralism imported into yoga. The yamas predate the Christian ethical vocabulary the modern reception sometimes reads into them, and they operate on a different premise. The Western moral tradition tends to ask what is the right thing to do. The yamas ask under what conditions is the inner work even possible. The two questions overlap but are not identical, and the yamas are answers to the second. They are not a first lesson before the more interesting limbs begin either. In the lineage's own account, yama deepens with practice and is still being learned at every later stage. The one yama the modern Western yoga studio sometimes carries forward — ahiṃsā, often in the form of vegetarianism — is the surface of a discipline that runs much deeper, and whose other four members are usually absent from the curriculum entirely.
