A Quote by Adi Sankaracharya on self, gross, subtle, causal, body, sheaths, consciousnes, sleep, and waking

The witness of the three states of consciousness [waking, dream and deep sleep] and of the nature of Existence-Consciousness-Bliss is the Self

Adi Sankaracharya

Source: Tattva bodha of Sankaracharya, Pages: 29

Contributed by: Meenakshi