There cannot be two witnesses, man is not the witness but the witness is that, which witnesses the man and the world together. Man and world together is mind. The witness of the mind which appears and disappears as waking and dream is the soul/spirit.
If the man and the world is a witnessed object, how can man be the witness? The witnessed cannot be the witness.
The nature of the self is the hardest to understand, yet it is the centre of the pursuit of truth. In fact, "fully perceiving the nature of the self" is one way to define enlightenment.
All the elements, the body, ego, the senses, the world emptiness or despair are mere mirage created out of the self, which is the spirit.
All persons and the universe exist within the world, which appear and disappear as waking or dream. Until one views and judges the Self as physical entity he is bound to believe in birth, life and death as reality. Until he believes in birth, life and death he will remain in the grip of duality and experiencing it as reality. Until one experiences the duality as reality and bases himself on the ego he is bound to have all the doubts and confusion. Until one has all the doubts and confusion he will remain in physicality or intellectuality. Therefore, there is a need to know what is mind and what is the substance of mind in order assimilate Self-Knowledge.
