The upanishad uses the word repute, which means consciousness. It is the ten you are awake, is dead when you're in, uh, dreaming. Is dead when there's deep sleep. And again when you're awake. Same avis, same consciousness. Look to cite near sabor, the consciousness which is not ever lost in a negative sense. The name of the rest is never not here. There is this one consciousness which lights up all our activities,. it enables us to have experience. That neutral activity is corresponding to the perception n of sound. This is possible because of the constant presence of consciousness.
Swami Sarvapriyananda teaches the Katha Upanishad, one of India's most revered texts which is also a part of the Vedas. It is a collection of philosophical poems representing a conversation between the sage Naciketas and Yama (god of death). They discuss the nature of Atman, Brahman and Moksha(liberation).