One should search for the source of the mind, which appear and disappears. What is the source or origin of mind? To find the answers one need to be receptive and ready to accept the truth and reject the untruth, when one finds all his accumulated knowledge is based on untruth.
By understanding and realizing what is mind and what is substance of the mind, the duality subsides. Only 'Self-awareness can bring about the death of 'physical -consciousness'. All growth of thoughts is only because of the reason that, the unreal feeling of identification that, 'self is physical', has become deep rooted and firmly established. Only by realizing the fact that ‘self is physical ' and focusing the attention on the true self which is the soul/spirit is death' of the ignorance.
Self is physical thought, causes 'separation between man and the world and truth leads to sorrow. Thinking the self is physical is the cause of experiencing the diversity as reality. On the base of the physical self the thoughts will arise. On the base of physical self one can imagine things and speculate. The 'world' and idea of ‘God’ exist only on the base of physical self. The physical self is false self within the false experience. Whatever seen, known, and believed and experienced of the world and idea of god within the experience of duality is illusion/mirage on the standpoint of the true self, which is the spirit. The pain and pleasure are part of the illusion, because the birth, life and death itself is illusion.
Understand that 'deep sleep is without the physical self and has no separative-world-and- idea of God as well. During the time of sleep, there is no individual, perceives the world. There is no trace of thoughts exist, about 'heaven, hell, karma 'world and ‘God’. The deep rooted self is physical impression alone, as the reason of experiencing them as reality.
Destruction of the original error ‘self is physical ' thought, will destroy the ignorance of experiencing the duality as reality. If this ignorance is overcome through knowledge of the true self, and able to base the self as the spirit, then the experience of duality will not remain as reality.
'Self-Attention' can destroy the 'self is physical ' identification. As long as the sense of ‘I exists the self will remain physical. If self remain physical the world and the idea of will remain as reality. The thoughts cannot be eradicated until one becomes aware of the fact that the self is not physical.
To overcome the experience of unreal duality, one has to focus his attention on the source of mind from where it erupts and subsides.
Seeker has to discover a way, to look to himself for the answers he seeks. Inquiry, analysis and reasoning on the true base is the best way to see more clearly when he is looking out for truth of his true existence.
No teachers or teachings that promise answers to all questions because they all are based on the physical self. There is no need for a guru in pursuit of truth because the self itself is the real guru.
Seeker has to realize the fact that, the Soul/Self is neither the body, nor the mind, nor the intellect, nor the world. The Soul/self is neither the breath, nor the heart. Soul/Self is in the form of the spirit or Consciousness.
The experience of duality is mere mirage created out of the Soul/spirit. Thus there is no second thing other than the soul/self. Therefore, holding anything else other then the soul/self as god is ignorance caused by illusion. The one which powers the illusion is the soul/spirit is real and eternal. The ultimate truth can be called god, not the individualized god with forms and names.
We are talking of truth or god in illusion. We argue discuss about the truth/Christ/Brahman within the illusion. In reality there is nothing to argue, nothing to judge, because there is nothing exists other then Christ/Brahman/Spirit/emptiness, which is ultimate truth.
There is no scope for argument on the base of accumulated knowledge in pursuit of truth. Seeker has to clear all his doubts and confusion on his own through inquiry, analysis and reasoning until he gets un-contradictable truth. Nothing has to be accepted as truth without verification.
Blinded with the illusion very few will be able to grasp the nondual truth. Only few escape from the web of illusion, only few seekers are able to acquire nondual wisdom.