Know thyself.

[anil]

I think knowing oneself is very important. After all if we weren't familiar with out thoughts and emotions then we would be blindly stumbling through life a zombie that acts on unconscious impulses rather than deliberate actions.
Zazen is the best way I know of to get to know oneself. Try imagineing the effect of actually sitting down without distraction for twenty minutes. Every impulse laid bare before your all seeing eye.