Can sleep deprivation help in a weird way?

Sleep deprivation has been known to cause hallucinations, and basically make, said person, go insane..after 70hrs without sleep a person's brain will shut itself down in attempts to "recharge" itself, while the person is still awake, making it difficult for someone to distinguish what's real and what's not. So the question is, would pushing yourself to the edge of insanity bring some "enlightenment" to a person if they were to attempt it? A better understanding of what being "insane" is really like, possibly?