Gnani knows his body, ego and his experience of the world as consciousness.

The world is indeed a mixture of truth and make-believe. Discard the make-believe and take the truth. - Ramakrishna

For proof of God's creation of the universe one has to go back to a time when there was no world. Since this is impossible, there is no proof of creation. Hence Buddha kept silent. Hence four schools of Buddhism sprang up later which varied from realism to emptiness claiming to interpret his silence.

That the mind is within the brain skull is a fallacy. No one has measured the mind because man and his experience of the world are within the mind.    Therefore the mind is not confined to the brain skull.  

One can see both mustered or a mountain range within the waking experience through his physical eyes  but the which sees  the waking and dream as a whole is neither the waking entity not the dream entity but the formless witness of the three states.   Thus one has to mentally grasp the existence of the formless witness apart from the three states is very much necessary  to understand, assimilate and realize the non-dualistic truth or ultimate truth or Brahman.

Yoga is easier than spiritualistic doubt, which involves intellectual difficulty and thinking. When people say that it is said by so and so in scripture or authority that is because they are intellectually lazy, they do not want to think, they want something easier. Man who thinks and reasons who alone can understand, assimilate and realize it. One has to goes to the very root of the matter. Only soul centric reasoning   deals with Truth.

Everyone is equal in pursuit of truth. Self-knowledge is not concerned with the egocentric accumulated knowledge because it is nothing to do with the soul, which is the innermost self. People who indulge in egocentric arguments based on their accumulated knowledge and challenging and provoking others are not real seekers but perverted mindset. And it is better to avoid such mind sets that are menace in pursuit of truth. The truth is not custom made stuff to please others but truth has to be acquired by the seeker on his own.  People with humility and interest and seriousness trying to get their doubts and confusion cleared are real seekers.  And they will reach the ultimate end of this inner [mental] journey.   

    

Discussion of unimportant subject matter is a great hindrance in pursuit of truth.  The path of truth is path of verification. Nothing has to be accepted as truth without verification. 

Only when the serious seeker comes to final conclusion that the all egocentric accumulated knowledge is ignorance and individuality is product of ignorance then it is the starting point of the inner journey. But people are stuck to their individuality, which takes it as reality they remain in ignorance experiencing birth, life, death and the world as reality.  When one reaches the final conclusion whatever egocentric knowledge one has acquired is all ignorance, then non-dualistic truth becomes very easy to understand, assimilate and realize it.

The look of an object will depend upon the medium through which the observer views it. In fact, our mental and intellectual conditions will determine the phenomenal universe observed and experienced.

The botanist viewing a flower will see it differently than nature lover viewing the same flower. Each one interprets the object that he sees in terms of his existing knowledge.   Gnani knows his body, ego and his experience of the world as consciousness,  whereas the meditator or yogi thinks he is experiencing the bliss because of his physical effort. When the waking experience itself is false hood whatever experienced on the base of waking entity is bound to be falsehood. 

A man of perfection is one who has realized the fact that, the true self is within the three states but it is without the three states.  And he has a firm conviction the true self is the formless substance and witness of the three states.  Thus your true identity is without the body and the universe and unaffected and witnesses the three states as passing show.  Thus when you become soul centric then your egocentric experience is mere mirage. Thus one becomes fully aware in the midst of duality the waking life is mere passing show. 

  A Gnani is fully aware of the fact that, the substance and witness of the mirage are one in essence and that essence is consciousness.   Thus there is no second thing exist other than consciousness. Thus other then consciousness all else is illusion.  Experience is possible only where there are two [duality]. Thus, where there is experience [duality] unity in diversity is impossible.  Therefore, only realization of truth is necessary to reach the experience- less [non-duality] state.   Thus whatever experienced as a person within the waking experience [duality] is falsehood.  Thus it is necessary to realize the fact that, how the three states are falsehood and on what standpoint. 

 The guru is necessary only in religious and yogic path.  Guru is not necessary in pursuit of truth because the truth has to be ascertained by the seeker himself.  Pursuit of truth is path of verification. And in every stage he has to verify the validity of his understanding by sound reasoning.  As his soul-centric reasoning faculty matures the truth will start revealing on its own. 

Thus it all depends on what one thinks and accepts as truth. The yogi thinks his Samadhi is Brahman.  Meditator thinks his thoughtless state is Brahman.  For religionist his belief of god itself is ultimate truth. For atheist his no god belief is ultimate. But for Gnani identifies his body, ego and his experience of the world as consciousness in the midst of waking experience. Thus for him everything is consciousness, becoming aware of the fact that, everything as consciousness and consciousness as ultimate reality is truth realization or self-realization.