All modern age gurus, thinkers approach is more practical, and they stuck with the reality of the world, they take it as real.

All thinkers and intellectuals and yogis, gurus of the world hold the ‘I’ as self, and base their teachings and theories on base of ‘I’ as self.  That is the reason only the half-truth has been revealed. 

Yoga Vasishta  says:-  that the world is both real and unreal. It is real because it is a manifestation of consciousness, but is unreal, in the sense, that it is not absolute and eternal like consciousness itself.

All modern age gurus, thinkers and approach is  more practical, and they  stuck with the reality of the world, they  take  it as real.

People who are conditioned by religion will not accept anything other than their accepted truth.   The scriptures are meant for those who are stuck the practical life within the practical world as reality.

Universe is both real and unreal. It is real because it is a manifestation of consciousness, but is unreal, in the sense, that it is not absolute and eternal like consciousness itself. Dualists’ sages’ approaches were more practical, and they stuck with the reality of the world, they took it as real.

People think ‘I’ or ‘I AM as self only their body is not self. But they have to realize the fact that,   when the ‘I’ is there than only the body, ego and the world is there. If ‘I’ disappears than the body, ego and the world disappear.  Without the ‘I’ there is neither body, nor ego and nor world.  The ‘I’ is present when the mind is present. Mind is present only when the universe is present. Universe is present only when the waking is present. Waking is present only when there is ignorance. 

Thus ‘I’ is cause of the ignorance. Getting rid of the ignorance is very much necessary in pursuit of truth.

Non-dualistic truth is ultimate  truth; all dualistic systems hold false self [ego] as real self and false experience [universe or waking]  as reality.  Non- dualistic wisdom is culmination of all systems including theistic non-duality.   The true non-dualist will not quarrel and argue with any theoretical philosophy because he is fully aware of the fact that, this orthodox theistic non-dualistic scholars or pundits like Dualist sages could not distinguish between ‘I’ and ‘formless witness.’ The 'I' was the witness. Their highest was the Jiva. One is so much attached to the 'I' that he do not want to think that 'I' does not exist. Again one is unable to detach the ‘I’ from the Real witness. 

There is need to study the scriptures. One has to self-search the truth and realize it without the scriptures. And then when he reads the scriptures he becomes aware the scriptures are also saying the same thing but everything is misinterpreted.   

Thus holding the ‘I’ or ‘I AM’ as self and trying to assimilate the self-knowledge will not yield any fruit.  Thus deeper verification is very much necessary to drop the ‘I’ or ‘I AM THAT – declared by the sages in the past which are useful only in lower stages.     

The ego , body and the world are within the  waking or dream’. They exist only when the waking or dream  is present. They are non-existent in absence of waking or dream . Thus identifying ‘I’, with  waking entity  alone, keeps one in the realm of duality. Thus, it is necessary to know the fact that, ‘I’ is not waking entity but 'i' is  the whole waking or dream experience. the waking is parallel dream and dream is parallel waking.

When one treats the ‘I’ as self, one thinks the self is within the body and it is limited to his physical entity alone. But the consciousness the innermost self pervades in everything and everywhere in all  the all the three states,  as  their formless substance and witness. Thus one has to trace the formless witness of the three states in order to realize the three states,  which appear and disappear  in succession are   mere mirage  created out of consciousness . On the standpoint of the formless witness the three states are non-extent.

The sense of self (‘I’) is present only within the waking or dream and it disappears in deep sleep. "There is the connectivity of ‘self in deep sleep. And one is aware of the dream and deep sleep experiences only  in waking. But in dream,  the dream entity is unaware of the waking experience. In deep sleep the dream or waking experience are  totally absent.  Then it proves the fact of the existence of a formless witness which is fully aware of the three states, which appear and disappear in succession. Thus, it is necessary to trace the formless witness, mentally to realize, it is the true self, and it is apart. It is apart because it is not an entity or identity within the waking or dream.   

The  mind or waking or dream are absent in deep sleep.    therefore  it is not identical with the consciousness  the  innermost self 'because the innermost self is ever formless.  There is no trace of duality in soul or consciousness . The duality exists only when there is waking or dream.

Mind(I) is associated and limited to dream  or waking; the innermost self becomes free from mind(I)  in deep sleep. Soul or consciousness is ever present  in all the three states therefore it is all and ever-knowing.

Physical eyes are not meant to grasp.  One has to grasp it mentally. The reasoning mind is the, the eye of the physical eye, as is clear in dreams.

The focus of attention has to be turned on the formless witness because grasping the truth is possible only when the focus is turned towards the formless witness.

Because of inherited conditioning people still hanging on to believe whatever they have inherited is ultimate truth, and they never bother to verify the validity of their belief and belief system . Even after one knows the truth, intellectually, he still has to do the actual inner work for him to get the firm conviction to realize it.  

One must mentally  turn The focus of attention from the waking or dream and fixed on formless witness of the three states in order to grasp it.”

The understanding based on what is observed require the two conditions, namely, elimination of others and concentration on the one. But in pursuit of truth   it differs from them,   it requires only one condition: elimination of all understanding based on what is observed.

The reason for this is although the innermost  self is unknowable because it is the very basis  of the physical existence and it is prior to anything that exists; it is still realizable by serious seekers.