Truth is hidden in everything and everywhere as formless substance and witness of the waking or dream experiences. To be enlightened is to know the formless substance and witness as ultimate truth. The formless substance and witness is the soul or spirit or consciousness. The mind or universe or waking (experience of diversity) rises from the soul and subsides back as the soul or consciousness. Thus, the soul is the source the waking or dream experience. The three states are unreality on the standpoint of the soul as self. Thus, the self is neither the waking entity [ego] nor the self is the dream entity but the self is the formless soul,which witnesses the coming and going of the three states. Therefore, there is a need to learn to view and judge the three states on the base of soul as self, in order to know and realize the ultimate truth or Brahman.
Truth is to know the facts of one’s true existence. To Know the facts is to know the Truth. Most people are unaware of the fact that physical existence is mere mirage and live in a delusion Realization of Ultimate Truth is the Gateway to freedom from experiencing duality as reality, therefore there is a need to find the fact that, the formless soul or consciousness is the innermost self, and soul is the ultimate reality. One has to remember that , there is no Truth without soul.