One of the funnier and interesting arcs in the show is Paulies battle with his night terrors and his questioning of his where he'll go when he dies. Christopher spooks Paulie out after talking about how he visited hell when he was in a coma after he was shot. Kinda shows how religious and superstitious Paulie is. And how religious these mob guys are. Gangsters yet devout Catholics. In the midst of it all, Tony remains pragmatic.
What makes it more interesting is we get peak into what a Mobsters verison of hell or purgatory would be like. Its comical yet somewhat serious.