In Sāṃkhya and Yoga, viveka-khyāti is the unwavering insight that the seer is different from everything seen, including the purest intellect. The Yoga Sūtras call it the means of escape, and say that when it is constant, the afflictions are burned and kaivalya follows.
Viveka-khyāti
Discriminative discernment: the knowledge that pure consciousness is distinct from matter, which liberates.
Also: Viveka khyati