The yama and what it covers
Asteya is the third of the five yamas — the outward ethical restraints that open the eight-limbed path of Patañjali's [Yoga Sūtras](lexicon:yoga-sutras) (II.30). The Sanskrit compound is the privative a- (not) prefixed to steya (theft), the abstract noun derived from the verbal root stī, to steal. The text is brief. The yama is named at II.30 — ahiṃsā-satya-asteya-brahmacarya-aparigrahā yamāḥ — placed third in the list because the classical commentary of Vyāsa reads *ahiṃsā* (non-injury) as the root of which the other four are unfoldings, and treats asteya as the third unfolding: after the discipline of action (ahiṃsā) and the discipline of speech (*satya*), the discipline of relation to what is not the practitioner's own. The technical reading the commentary supplies is broader than the surface meaning. Steya is not only the legal taking of objects the practitioner does not own — though that is included — it is anything taken without being given. The temporal extension covers attention claimed without offer, labour extracted without acknowledgement, credit assumed for what was done by another, recognition pursued ahead of the work that earns it. The mental extension covers covetousness itself: the imagined possession of what is not yet held, which the commentary treats as the seed-form (saṃskāra) from which the surface act of theft eventually arises.
The siddhi the text attaches
Patañjali's [Yoga Sūtras](lexicon:yoga-sutras) attach a specific *siddhi* to the deep cultivation of asteya at II.37: asteya-pratiṣṭhāyāṃ sarva-ratna-upasthānam — when asteya is firmly established, the practitioner finds all jewels approaching. The lineage reads the promise in a particular way. The commentary is unambiguous that sarva-ratna-upasthāna is not the acquisition of literal wealth by supernatural means; the jewels the Sūtras name are the resources the practice itself requires, and what the deep cultivation of the yama makes available is the structural condition under which what is needed arrives without being chased. The reading converges with the aparigraha settlement at II.39 — aparigraha-sthairye janma-kathaṃtā-saṃbodhaḥ, settled aparigraha yields knowledge of how the present birth was acquired — in treating the siddhis as depth-markers of the relevant yama rather than as rewards advertised to the practitioner. The classical commentary's reading is that the practitioner whose attention has been thoroughly withdrawn from the gesture of grasping toward what is not yet possessed is in a structurally different relation to what arrives in the practice's field. The promise reads as fanciful to the modern reader, in the same register the other yamas' siddhis read in; the lineage treats it as indicative of the operative depth rather than as transactional bait.
Where to encounter it
Sadhguru's *Inner Engineering: A Yogi's Guide to Joy* treats the yamas — asteya included — as the operating curriculum rather than as a historical preamble, grounding the five restraints in the Śaiva yogic stream of southern India and treating not-taking as the condition under which the inner experiment can be conducted at all. The Inner Engineering Online course carries the same instruction into the practice-side. Sadhguru's longer-form lectures, his talk on disability and spiritual practice and the talk on unlocking the mind's full potential make the operative claim about asteya without naming the technical Sanskrit: the recurring move is to treat ethics not as imposed rule but as the conditions under which what the practice points at becomes accessible. Paramahansa Yogananda's *Autobiography of a Yogi* belongs to the parallel *kriyā-yoga* lineage and treats the eight-limb architecture — yama and niyama included — as the operating system on which the more esoteric techniques run; the Autobiography's treatment of the renunciate vow includes the structural shift away from the gesture of acquiring as a precondition of the practice the book records. Jon Kabat-Zinn's *Full Catastrophe Living* programme carries the same observation in the secular MBSR register without naming the Sanskrit: the clinical effectiveness of mindfulness practice depends on the practitioner being able to register what is actually present in their attention rather than what they are reaching toward, and the underlying observation about acquisitive habit and its drag on the attention is the same one the Sūtras organise the yama around. The companion *ahiṃsā*, *satya*, *brahmacarya* and *aparigraha* entries map the rest of the yama curriculum asteya sits inside.
What it isn't
Asteya is not the legalistic prohibition on theft of the courtroom. The classical commentary's reading is positive — a discipline of not-taking that extends across the practitioner's whole relation to what is not herself — of which abstention from criminal theft is the most visible surface but not the centre of gravity. The yama is also not Western property morality imported into yoga; the Sūtras predate the Christian ethical vocabulary the contemporary reception is sometimes tempted to read into them, and the yama operates on a different premise. The Western moral tradition tends to ask what is the right thing to do with respect to property; the yamas ask under what conditions is the inner work even possible. Asteya is also not *aparigraha* in different clothes — the two yamas are distinct in the Sūtras' architecture. Asteya is the discipline of not-taking what has not been given, addressed to the practitioner's relation with what is not yet hers; aparigraha is the discipline of not-grasping what has already been acquired, addressed to the practitioner's relation with what she already holds. The two unfold into each other — the practitioner who has thoroughly relinquished the gesture of acquiring will also have thoroughly loosened the gesture of holding — but the Sūtras keep them separate because they address different moments of the same underlying movement. And asteya is not the Buddhist adinnādāna-veramaṇī — the second of the pañca-sīla (five precepts) — in different clothes, despite the obvious convergence. The Buddhist precept operates inside the *anattā* analysis, in which the I doing the taking is itself one of the configurations the path is engineered to see through; the Sūtras' yama operates inside the Sāṃkhya-derived dualism, in which the witness and the field of action remain distinct. The instructions sound similar from outside and originate in different commitments.
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