The Ego is confined to the physicality; but one has to realize that, the mind cannot be confined to the body alone. One has to analyze it and become aware of the fact that, the mind is present in the form of the whole universe. If one knows the mind is the universe and the universe is created out of the consciousness, then what else can exist, other than the consciousness? Then whatever is, is the consciousness, when the illusion is mentally converted back to the consciousness by perfect understanding assimilation and realization.
If the soul or consciousness is everything, how can there be anything other than consciousness. The nature of consciousness is like deep sleep experience. Hence silence is the nature of the consciousness(soul).
If the consciousness is the ultimate truth then there is nothing else to know and realize the fact that, the consciousness is the true self. There is no room for the duality in the realm of the non-dualistic or Advaitic truth.
For A Gnani The body and the world too are consciousness . The one who believes that, the body and the world are separate, will not be able to realize there illusory nature. Therefore, they will not be able to accept the waking life as illusion.
One has to give up the idea of individuality and world is apart from him. Man and the world co-exist together and they disappear together. Until man thinks the world is separate from him, it becomes impossible to understand, assimilate and realize the non-dualistic or Advaitic truth. Thus he has to renounce the idea that he is an individual separate from the world.
The mind rises from the formless soul, which is in the form of consciousness. The sense of ‘I’ rises as mind. The mind is in the form of universe. Thus ‘I’ is the mind or universe. Universe appears as waking or dream and disappears as deep sleep. Holding sense of ‘I’ limited to the ego is cause of separation. It makes one feel, he is an individual separate from the world and world existed prior to him, and he is born in it afterwards. Until one has this conviction, it is very difficult to grasp the non-dualistic or Advaitic truth.
Thus it is necessary to realize the self is neither the ego nor the world but is the witness of the ego, body and world together. The true self is formless witness of the three states. And it is also the formless substance of the three states, because without self the three states are non-existent. In reality the formless substance and witness of the three states are one in essence. The essence is consciousness and it is ultimate truth. The formless self is witness of the three states. And the formless witness is within the three states. And it is without the three states. And also it is apart from the three states. It is within the three states as their formless substance. And it is without the three states as their formless witness. And it is also apart from the three states because it not an entity or identity within the three states.
Lots of patience, humility is needed in pursuit of truth. Arguments on their point of view are the greatest hindrance in pursuit of truth. Thus holding any teacher and teaching or scriptures are the greatest hindrance in pursuit of truth.