“Oh God! that a man should be a thing for immortal souls to sieve through!”
All Delight behind them, Moby Dick is finally spotted and they do battle with him! He really is like a ghost from the deep rising up as if shot from hell for their troubles.
I don’t really find Ahab to be mad. He’s a successful whaling captain (40 years) who sees a chance at greatness, if for dubious reasons. He’s very alive and awake.