From one primordial nature, prakṛti, the whole of mind, senses and matter unfolds in an ordered sequence.
From prakṛti (primordial nature) evolve mahat (intellect), then ahaṅkāra (ego), then mind, the senses and the five elements — 24 tattvas in a fixed sequence of emergence.
— Sāṅkhya Kārikā of Īśvarakṛṣṇa (c. 350 CE), vv. 22–38
Trace the sequence inward in reverse: past the elements, past the senses, past mind and even the sense of 'I' — and ask what remains that is doing the seeing. Sāṅkhya calls it puruṣa, the witnessing consciousness. To know oneself as that, and not as its unfolding, is freedom.
A poetic teaching to sit with and contemplate.
Sāṅkhya offers one of the tradition's most orderly visions of how the manifest arises. From prakṛti, the single unmanifest ground of nature, evolves mahat or buddhi — the great intellect; from that, ahaṅkāra, the 'I'-maker; and from that in turn the mind, the senses of knowledge and action, the subtle essences and the five gross elements. Twenty-four tattvas emerge in a fixed sequence, each a further unfolding of the one root — a cosmos and a psyche flowering from a single seed.
Yet Sāṅkhya's deepest teaching is not the unfolding itself but the One who watches it. Distinct from all twenty-four is puruṣa — pure consciousness, the silent witness that is never itself a product, never entangled, only ever the seer. Bondage, the text says, is the confusion of the witness with the witnessed, of the Self with the play of prakṛti; liberation is the clear discernment that separates them. The whole elaborate map of emergence exists, finally, to help the seeker step back from all that unfolds and rest as the awareness in which it appears.