Jagrat (waking state) — the field of outward awareness in which consciousness identifies with the body and perceives the gross world. In Vedanta, jagrat is mithya — a lawful projection within consciousness, no more real than dream, illumined by the same changeless witness.
Taijasa is the individual self in the dream state — inward-turned consciousness illumining a private world of vasanas. It points to the mithya nature of both dream and waking.