Experience is prior to thought.

Thought and thinker are reality within the universe. The thinker and the thought exist within the universe. The man and his experience of the universe is reality within the waking experience. The waking experience is mere illusion on the ultimate standpoint. Therefore, the individual experiences are part of the illusion. Thus thought and the thinker are part of the illusion.

Positive and negative thoughts and the thinker are made of same material. Whether one thinks rightly or wrongly he is thinking as person. The thoughts will not rise without the form. Without the form there are neither thoughts nor the thinker. Thus positive or negative thinking or right or wrong thinking are part of the physical existence and nothing to do with ultimate truth because the physical existence or universe is mere illusion.  

Experience is prior to thought. without the waking experience there is no thought.  thought implies duality. if there is no duality than there is no thought.  Only in waking or dream one gets thought. Therefore one has to mentally trace the source of the waking or dream experience(mind) in order to realize the waking experience is as unreal as dream.  thus the three states are mere illusion.

To overcome illusion,  one should know the source of the Mind or universe from   where this mind rises and subsides ? “When the mind is there the universe is there. the  substance,witness and the source of the mind are one in essence.  Absent of mind absent of universe. Absent of universe is absent of duality. Absent of duality is absent of thoughts. Thus until one becomes aware of what is mind and what is the substance of the mind it is impossible to assimilate Self-knowledge or Brahma Gnana or Atma Gnana .

To know the non-dual Reality, deeper thinking is required. The thinking faculty ceases and becomes still when it reaches the source of the mind. One has to realize the fact that, from ultimate standpoint,   the waking entity is false self  because waking experience itself is  false experience. --FORMLESS PATH