Psychē, breath or life, became in Greek philosophy the soul: for Plato the immortal, rational self, imprisoned in the body and purified by philosophy; for Aristotle the form of the living body; for Plotinus the third hypostasis, animating the cosmos. The care of the soul is Socrates’ central concern.
Psyche
Soul: the life and mind of a living being, in Plato the immortal self that seeks the Good.
Also: psyche, soul