Consciously becoming aware of the soul( Atman) in the midst of the waking experience is non-dual Self-awareness.

The self is lying immersed in the sleep of ignorance of its formless nondual true nature and experiences the illusion as reality.  When it wakes up from the sleep of illusion, then the body and the universe will never again will prevail as reality because they are just illusion created out of the inner most self, which is in the form of consciousness.    A Gnani still remain absolutely unattached to the illusory reality in the midst of the illusory reality.

The ignorance is the cause of experiencing all sorrow and calamities as reality. Thus eradicating the ignorance completely is necessary. And this is possible only through self-knowledge.   Thus, there is no other road to freedom other than Gnana.  There is no other entrance other than except Gnana.  The ignorance will vanish only when the nondual wisdom dawns.

 Sage Sri Sankara, in Bhaja Govindam says: - [Jnana Viheena Sarva Mathena Bajathi na Muktim janma Shatena] - one without knowledge does not obtain liberation even in a hundred births, no matter which religious faith he follows.

 Detachment to attachment is impossible without wisdom. Only when one realizes the fact that, the self is not form but self is formless, than only it is possible to detach the ‘self’ from the false attachment. 

Man and his individual experience of the birth life and death are reality within the falsehood. Until one has a firm conviction he is an individual separate from the universe and universe existed prior to him, and he is born in it afterwards he will never be able to acquire nondual wisdom. Because of this reason he will not be able think beyond form, time and space.    Until this conviction is there all his views, judgments and conclusions are based on the false self within the false experience. Thus there is a need for overcoming this conviction by realizing the fact that the self is not form but self is formless. 

Anyone puts their hand in fire it is the universal experience that the nature of the fire is hot, and that even if a man says it is cold, the fact of heat remains. Same way the one who is aware of the three states in waking is aware of the awareness of the three states. The "three states" is the totality of man's experience, which gives one the dual and non-dual experiences. Waking experience is converted into idea. People do not want to go deeper.   They do not want to know what an idea is. Where has the deep sleep gone? It disappears as the soul(Atman) when waking takes place.  The whole experience of diversity(waking experience) disappears as the consciousness (soul or  Atman). That is the point. That the soul (Atman) is what the seeker of truth has to get at.

v  What is experience?

 It implies a second thing, i.e. duality. Unless one rise to a unity, he has no peace.

v  Why does man have wants, peace?

Because, he has sense of duality, which is the cause of experiencing the illusory pain and pleasure as reality

 Absence of experience, then whole experience of duality is converted into non-duality. When one knows that all the three states have merged into the formless soul the innermost self, and then there is nothing to experience because there is no second thing other than the soul (Atman).  

soul(Atman) creates and in which the creator is dissolved. "Awareness is self”. The three states are dissolved in the soul(Atman). The waking or dream is a mirage; the waking or dream gets merged in  the soul(Atman) in sleep.

The whole waking or dream is merged in  soul(Atman) in sleep, and then one gets the same position as soul, the innermost self unconsciously in deep sleep.  Consciously becoming aware of the soul( Atman) in the midst of the waking experience is non-dual  Self-awareness.