The true knowledge of the self is not a knowledge. It is not something that you find by searching, by looking everywhere. It is not to be found in space and time. Knowledge is but a memory, a pattern of thought, a mental habit. All these are motivated by pleasure and pain. It is because you are goaded by pleasure and pain that you are in search of knowledge. Being oneself is completely beyond all motivation. You cannot be yourself for some reason. You are yourself and no reason is needed.