All hangs on the idea "I am

"To know that you are a prisoner of your mind, that you live in an imaginary world of your own creation is the dawn of wisdom."
"You have put so much energy into building a prison for yourself.
Now spend as much on demolishing it.
In fact, demolition is easy, for the false dissolves when it is discovered.
All hangs on the idea "I am."
"Within the prison of your world appears a man who tells you that the world of painful contradictions, which you have created, is neither continuous nor permanent and is based on a misapprehension. He pleads with you to get out of it by the same way by which you got into it. You got into it by forgetting what you are and you will get out of it by knowing yourself as you are."

~Sri Nisargadatta Maharaj