When man looks for experience he becomes the body.
When he looks for knowledge he becomes the mind.
When he looks for God he becomes the Heart.
When he looks for Truth he becomes Nothing.
You know you exist.
This is so natural not even your parents had to teach you that.
You instinctively know you are alive and that you are perceiving somehow.
Not even deliberately, it is just happening.
It is an effortless functioning.
And there is Awareness of that functioning.
What more can you say?
The rest is entirely made up.