What is Saṃskāra?
A saṃskāra (Sanskrit: impression or formation) is a mental imprint left by an action, thought, or feeling. Every conscious act deposits a trace in the mind. That trace shapes how similar situations are met in future. The term appears in both Hindu yoga and Buddhism, where it forms the psychological basis of karma and the cycle of samsara.
The mechanism
Classical Indian psychology holds that every conscious act leaves a trace. Each act of perception, thought, intention, or emotional response deposits a saṃskāra: a sub-conscious imprint that does not vanish when the act passes. It settles, conditions future arising, and reinforces itself when a similar input reactivates it. The mechanism is closer to what cognitive science calls procedural memory than to anything mystical. Repeated action grooves a pattern. The pattern runs more readily next time. After enough repetition, it runs below the threshold of deliberate intention. At that point the saṃskāra has settled into a vāsanā, a habitual disposition, and the practitioner lives from it rather than choosing it.
In yoga and Vedānta
Patañjali's *Yoga Sūtras* make the saṃskāra structure load-bearing for the entire path. The five *kleshas*, the afflictive patterns of ignorance, ego-identification, attraction, aversion, and clinging, are not surface emotions but deeply grooved saṃskāras that condition every act of mind. The eight limbs of yoga are not, on this reading, a moral programme. They are the structural intervention that progressively de-grooves the kleshic patterns and replaces them with saṃskāras of clarity. The Bhagavad Gītā adds a further refinement. Niṣkāma karma, action without attachment to its fruit, is precisely the action that does not lay down a fresh binding saṃskāra: the doer is not invested in the outcome. The path of karma yoga described in the karma entry is, mechanically, the practice of acting without depositing the residue that future bondage requires.
In Buddhism
The Buddhist analysis differs from the Vedāntic in one key respect: there is no persisting self that owns the saṃskāras. In the *skandha* model, the saṅkhāra-skandha, the aggregate of volitional formations, is the fourth of the five constituents that make up the appearance of a person. It is impersonal. Saṃskāras arise, condition future arising, and pass. The apparent continuity of a person who has habits is itself one of the formations. The doctrine of dependent origination makes the link explicit: ignorance conditions formations, formations condition consciousness, consciousness conditions name-and-form, and the cycle of samsara is the running of those formations. Vipassanā practice is the work of observing saṃskāras arise and pass without identifying with them. The cessation the tradition reports, saṅkhāra-nirodha, is the unwinding of the formations themselves.
Where it appears in the index
Sadhguru's Inner Engineering: A Yogi's Guide to Joy treats saṃskāra as the operating problem the practice is designed to address. Most of the book's practical instruction is, in effect, technique for reshaping the saṃskāric ground beneath the surface life. Nisargadatta Maharaj's *I Am That* approaches the same territory from the non-dual side: the dialogues return repeatedly to the recognition that saṃskāras are running an apparent self that is not, on examination, anyone. Jon Kabat-Zinn's MBSR imports the basic mechanism into a secular clinical idiom. The pedagogical claim of mindfulness training is that sustained attention to present-moment experience interrupts the automatic firing of conditioned patterns and progressively loosens their grip. Tara Brach and Jack Kornfield's Power of Awareness carries the same instruction in the Theravāda-flavoured vocabulary the saṅkhāra analysis was originally formulated in.
What it isn't
Saṃskāra is not memory in the ordinary sense. Declarative memory is one kind of saṃskāra, but not the main operating one. It is not trauma, though traumatic experience is one of the most consequential saṃskāra-deposits the practice has to address. It is not Freudian repression: the model does not require the content to have been pushed out of awareness, only that the patterning runs faster than deliberate cognition can catch. And it is not karma as the term is often used in popular Western shorthand. Karma in the technical sense is the action that lays down the saṃskāra; the saṃskāra is the residue that conditions future experience. The two are linked but distinct.
