I know what you mean "dude"... lol
I think that it's not so much a profession of insanity as it is just acknowledging that we say and do things that we know aren't really "normal", per se... things perhaps that drive others nuts or hurt them... or hurt ourselves. We drown in an inexplicable mass of pain and confusion.
Ehhh, that's just me. I don't want too dig deep into this right now - I think it'd be an interesting discussion though