The Self is not ‘you’ but the self is that witnesses ‘you and the world’ together without the physical apparatus.

The Self is not ‘you’ but the self is that witnesses ‘you and the world’ together without the physical apparatus. You are the false self(ego or waking entity) within the false experience(waking) bound by the experience of   birth, life and death and form, time and space whereas the ‘Self ‘ is birthless and deathless because it is formless. Thus the self is not limited to waking state alone because it pervades everything and everywhere in all the three states. Thus limiting the ‘self’ to waking entity alone is the cause of the ignorance. 

The dream entity (you) and the dream world becomes falsehood when waking takes place. Similarly the waking entity (you) and the waking world becomes falsehood when wisdom dawns. Wisdom dawns when waking entity (you) realizes it itself is not the self but the self is that which witnesses the coming and going of the three states. The witness and the three states are one in essence. That essence is consciousness (Atman).  Thus consciousness is ultimate truth or Brahman. Atman is second to none. 

Thus one has to know ‘What is mind? ‘What is the substance of the mind?’ and ‘What is the source of the mind?’ in order to realize the non-dualistic or Advaitic truth.