Waking, dreaming and deep sleep are not separate from thuria. Thuria exists by itself, independently of all of them. They exist dependent on thuria. Turia literally means the four yes. Trascendent meditation. We see ste a te medittive state is measurably different from mitinge sleeping,. dream through bag bas ao and asoe that mana ora a. It's we're unpacking a treasure chest.
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Mantra 1.