Basically shows those who have faith from those who are too thickheaded to think outside the box.
Contrary to what you believe, more people believe in some kind of higher being than not.
Bill: Do you believe in God?
Jack: No, why should I? Ive never met him after all.
Bill: Have some dam faith
That imaginary entity to which the whole of modern society is an unwitting slave thanks to puritan values set down by a man who participated in wild orgys before becoming born again and being sainted: The reaon we dont have socially acceptable orgys anymore!