The Samkhya term for the single, dynamic material principle whose activity accounts for the entire observable world, including mind and mental activity.
Prakriti is the Samkhya term for the single, dynamic material principle whose unfolding is held to account for the entire observable world, and it forms the active half of the dualism this archive already introduces on the page for its paired opposite, purusha.
Rather than positing many separate material substances, this system treats all of nature, physical matter, the senses, and crucially the mind and its activity, as differentiations of a single active principle, unfolding in a regular, describable sequence rather than arising arbitrarily. This is a strikingly unified account of everything that is not consciousness, folding mental activity into the same basic category as physical matter rather than treating mind as a special, separate kind of stuff.
It is worth stressing what a significant claim this is: on this account, thought itself, the very activity of thinking, reasoning, and desiring, belongs entirely to this active material principle, not to the witnessing consciousness, purusha, that merely observes it. This reframes the ordinary sense of "I am thinking" as, technically, a case of mistaken identification, with the actual thinking belonging to prakriti and the observing awareness mistakenly claiming it as its own.
This principle's activity is analyzed through the scheme of three qualities covered under guna, clarity, activity, and inertia, whose shifting combinations are what produce the entire textured variety of the material and mental world. Every specific mental state or physical object, on this account, is simply a particular ratio of these three qualities as they manifest within prakriti's ongoing activity.
The technical goal of the disciplined practice covered under Yoga Darshana is precisely to see clearly that all of this activity, however vivid and compelling it feels from the inside, belongs to prakriti and not to the witnessing consciousness watching it — a recognition that constitutes liberation on this system's own terms, achieved not by altering prakriti's activity but by correctly identifying what it was never truly a part of in the first place.
It is worth stressing how unified this account of the material world actually is. Rather than positing many independent kinds of matter alongside a separately existing mind, this system treats everything that is not pure consciousness, rocks, bodies, senses, thoughts, and feelings alike, as differentiations of one underlying active principle. This gives the system a striking economy: an enormous variety of observed phenomena is explained by the differentiated unfolding of a single source, rather than by an ever-expanding list of independent basic substances each requiring its own separate account.
Read Prakriti directly alongside purusha as its necessary conceptual pair, and follow guna to see the specific vocabulary used to analyze this principle's activity. The reading path the self and liberation situates this account of matter and mind among the archive's other treatments of self and discipline.
The Samkhya term for pure, inactive consciousness, standing in permanent contrast to the active material principle it observes but never merges with.
A Samkhya-derived scheme of three fundamental qualities held to underlie all activity and matter, widely used across later texts to analyze temperament and action.
A dualist philosophical system distinguishing pure consciousness from the material world it observes, offering a genuinely different metaphysics from Vedantic non-dualism.
The philosophical school systematizing yoga as a disciplined path paired with Samkhya metaphysics, distinct from the broader family of practices covered under the general concept of yoga.