Seeker has to know that the non-duality [non-duality is like deep sleep]; there cannot be any experience because experience implies duality. But when there is no experience of duality [waking/dream] they are without experience/knowledge/perception.
When there is experience of duality [waking/dream] there is experience/knowledge/perception then one can conclude that When there is non- duality there is no experience/knowledge/perception.
The truth of non-dualism can be verified by finding out which the subject is and which is object. There is a separation between subject and object. The subject is the formless witness and the object is the three states. The subject is the formless knower; the object is known [three states]. But the formless knower cannot know itself, because it is the subject and also the object. Since the subject is the formless substance of the three states. The subject is the soul the object is the mind/’I’.
In fact the formless witness cannot even observe itself, because it is the witness as well as the witnessed. Man thinks he himself is soul/self, and witnesses the world, but fails to see he and his world are mere illusion, because they are reality within the waking/dream. Only when man becomes aware of the fact that he is not the self/soul, the self/ soul is the one, which powers the waking/dream in which man and world exist. Due to ignorance he is thinking himself as self/soul.
The subject and object relation is not between mind and the body but mind and the soul. Until man thinks himself as self/soul, the mind becomes limited to the physical entity and views and judges the world on the standpoint of the physical entity and thinks his physical body and the world are reality.
Therefore there is a need to understand the fact that man and his world are reality within the waking/dream. The one which powers the waking/dream is the formless witness of three states. The Formless substance and witness of the three states is the soul/self. Therefore, it is erroneous to view and judge the worldview on the standpoint of waking entity/ego/physical entity.
Experience/knowledge/perception is within the experience of duality [waking/dream]. Thus it is necessary to know the source of the experience of duality [waking/dream] in order to know the true self is the source [soul] of the duality not the physical entity within the experience of duality [waking/dream].
The duality cannot exit without non duality [soul]. But non duality [soul] can exist with or without the duality [waking/dream]. Thus holding the soul as the body within the false experience and trying to know the truth as an individual is impossible task, it trying to melt the snow of Himalayas with the candle light.