The falsehood is based on imagination. We are discussing about the ultimate truth within the falsehood to know how to overcome the falsehood. Until and unless we overcome the physicality, we will not be able assimilate the nondual truth. Thus being judgmental on the base of physicality will keeps us in the grip of duality. Until we think duality as reality the ultimate truth becomes distant dream.
If one thinks on the base of physicality it will lead him towards physicality/intellectuality. If one thinks on the base of the spirit/self it will lead him towards the spirit. Thus physical based understanding has no scope in the realm of the spirit, which is the true self.
The nondual truth is based on the formless source, from where the whole falsehood rises and subsides. Thus, one has to view and judge on the base of the source, not on the physical self, which is limited to the waking experience alone. The formless source [soul/spirit] is aware of the three states, which comes and goes in succession.
The absolute truth cannot be contained in words and concepts. Thus, merely believing in words and concepts is not the truth.
Nothing has to be accepted as truth without verifying through deeper inquiry, analysis and reasoning, since your present views and judgment is based on the physical self/ego. Thus the reasoning based on the ego will yield only physical truth. Only reasoning based on the formless base/spirit base will reveal the universal truth.
One has to indulge in deeper inquiry, analysis and reasoning on the base of the soul, which is the true self, in order to realize the fact that, the “Self “is not subject to birth, life and death. If self is not the birth entity then whatever is based on the birth entity has no value. Thus, it is erroneous to view and judge on the birth entity. Thus, it is necessary to investigate:-
With what this birth entity [body] with name functions itself as a person and perceives the world?
With what one knows himself and the world?
If body is not the self, then what is self without the body?
The body cannot function itself as a person and perceive the world without the self, the body and the world are insentient without the self/spirit, which is gives sentient to the body and the world. Without the self/spirit the body and the world are non-existent. Thus, the sprit is the subject and the body and the world are mere object. When the subject is formless then it is erroneous to judge on the base of object as subject. What is the benefit of exerting mental effort the wrong way?
Since, we are conditioned to view and judge on the base of object [body] as subject, this conditioning has to be dismantled. Therefore, repeatedly highlighting on the subject, that is everything is an illusion and the soul is the true self, the subconscious gradually becomes receptive and starts dismantling the physical base and the spirit/self/soul alone will prevail as ultimate truth.