Harry: Christopher can scoff, Jack, but I know how hard you've been praying; and now God is answering your prayers.
C. S. Lewis: That's not why I pray, Harry. I pray because I can't help myself. I pray because I'm helpless. I pray because the need flows out of me all the time, waking and sleeping. It doesn't change God, it changes me.
(A.Hopkins & D.Winger)