When Krishnamurti talks about Self-Knowledge, we better listen. I have given it a go myself,  KNOW YOUR SELF  in my book with no title, instead three definitions for the term en.light.en.ment  

Self-Knowledge Is a Process

"So, to understand the innumerable problems that each one of us has, is it not essential that there be self-knowledge? And that is one of the most difficult things, self-awareness - which does not mean an isolation, a withdrawal. Obviously, to know oneself is essential; but to know oneself does not imply a withdrawal from relationship. And it would be a mistake, surely, to think that one can know oneself significantly, completely, fully, through isolation, through exclusion, or by going to some psychologist, or to some priest; or that one can learn self-knowledge through a book. Self-knowledge is obviously a process, not an end in itself; and to know oneself, one must be aware of oneself in action, which is relationship. You discover yourself, not in isolation, not in withdrawal, but in relationship, in relationship to society, to your wife, your husband, your brother, to man; but to discover how you react, what your responses are, requires an extraordinary alertness of mind, a keenness of perception." Jiddu Krishnamurti