Only when one finds whatever he has read and understood of any teaching and philosophies is inadequate or useless to quench his spiritual thirst then he tries to find it on his own.

Only when one finds whatever he has read and understood of any teaching  and philosophies is inadequate or useless to quench his spiritual thirst  then   he tries to find it on his own.  Buddha also rejected religion, scriptures concept of god when he found them useless  to realize the ultimate truth.  The truth pursuit is personal journey and a journey of verification of facts.   

No  teachings are required in pursuit of truth. Ultimate Truth has to be discovered ,assimilated and realized by deeper inquiry, analysis and reasoning.  Ultimate Truth  can be only found by through reason based on the soul as self. People throng to teaching and bookish knowledge , not to inquire, analyze and reason.

Many sounds a strong convictioned, and their knowledge is based only on the teachings  and others opinions. They support their arguments with references from philosophical books or scriptures or the thoughts of the great thinkers.  Seeker has to  remember for every strong argument there will be a counter argument.  The truth is always based on the formless; therefore, what is the use of arguing on the form based understanding, which is the cause of ignorance. In ignorance one ignores the Truth itself.

Those who get involved in intellectual debates, which are based on the form as self, will get only hallucinated realization based on speculation. 

Many people think and discuss on the authors of the books or teacher. As seekers of truth one has to know where the author or teacher  has got stuck in assimilating the self-knowledge for their own research. There is no need to criticize any  authors and teacher. If one bases his reasoning on the soul as self then  he will know how far they have reached in their understanding and assimilation of the non-dual truth.

The value of Self –Knowledge isn’t to be found in books. Those are just the external appearances of self; they're not the realization of “Self” as proof. If one realizes the “Self” then he realizes the formless substance of the mind, and he sees the truth in it. When the truth becomes apparent then it cuts off the stream of delusion. Their writings are pointers to truth, not truth-in-itself. That's why merely believing in their books is pointless.

 “Some of the great thinkers think that,  there is no difference between the ‘thinker’ and ‘thought’; the ‘observer’ and the ‘observed’ emphasizing the correlation between the internal and external worlds, for a complete understanding of Truth. This understanding would bring about a radical transformation of the mind, by the mutation in our brain cells and would change our perception of the world.”

But they fail to understand the thinker and the thought are part of the illusion or duality. There is neither thinker nor thought in reality.  The thought will not rise without the form; therefore the thought will rise only when the physical self is present. The physical self is present only when the   waking experience or dream is present. The waking or dream is present only when the mind is present. Therefore, there is a need to understand all these facts, before moving ahead in pursuit of truth. 

 When the self is not physical but is is formless,  then there is no question of basing it on brain cells psychology because they are based on physical self.  The physical self is false self . 

If thinker and thought of the dream and observer and observed of the dream disappears along with the dream. Same way the waking ‘thinker’ and ‘thought’; the ‘observer’ and the ‘observed’ disappears in deep sleep.  It is not the waking entity which is aware of the coming and going of the three states. The formless witness of the three states is apart from the three states. The three states are unreal on the standpoint of the formless witness of the three states. And the formless witness is also the substance of the three states.   Therefore, the one which is aware of the three states is not physical; therefore, question of mutation of brain cells does not arise. 

Since the thinker and the thought exist with in the duality and thinker and the thought both are object to the formless witness. Therefore, one need to understand the fact that the subject [true self/spirit] is formless and the object is form [three states].  The subject and the object is one in essence because the object is created out of the formless subject. 

Since, scientific inventions are based on the physical self and physical existence; there invention will not go beyond the physical existence. And they can only discover the truth of the fragments within the consciousness, not of the whole. Until and unless they discover the fact that, the self is not physical, their understanding will not go beyond physicality. When the self is not physical but it is the formless spirit, searching truth within the physical body or brain cells is of no use. 

To assimilate the self-knowledge effectively, seeker needs to be receptive.  He has to have patience and humility and allow the person to speak freely express himself about the Self-Knowledge, without hindrance or interruption. In return, seeker will receive free expression and then, try to grasp what he is saying. Seeker should not be judge on the base of his accumulated knowledge and simply argue on his own point of view. Seeker has to accept others views, if finds them un-contradictable truth.

 Seeker has to verify the validity of all claims by using his own reason. Seeker has to get all the doubts cleared by questioning patiently, and point out all the doubts and confusion with humility. Argument is greatest obstacle in pursuit of truth, therefore never indulge in arguments.   Therefore, discussion with humility is the way towards the ultimate truth.    This will enable him to provide understanding and to see the fellow seekers perspective that is not to say that, he has to agree to their point of view, however it will offer or enable one to consider another option. And it helps seeker to think deeper when he is not satisfied with the answers and find answer on his own reasoning, till un- contradictable answer is found.  

If one can truly understand “what is Mind”? “What is substance of the mind?” it would lead to resolving a lot of perhaps unnecessary trouble, and conflict.

If we look closely at the nature of the mind, what it is really, how it has come into being, and what constitutes it, then  it will become clear of the fact that, mind is mere illusion; the formless substance and witness  of the mind, which is the formless  spirit, is real and eternal.