You are NOT your mind or your body, and understanding this concept can help you gain access to unlocking your personal power to exert mental control of the mind. Mental Control and concentration go hand-in-hand, allowing us to have mental control through the power of concentration.
“It is only too likely that neither of us has any knowledge to boast of; but he thinks that he knows something which he does not know, whereas I am quite conscious of my ignorance. At any rate, it seems that I am wiser than he is to this small extent, that I do not think that I know what I do not know.”
“It is the mark of an educated mind to be able to entertain a thought without accepting it.”