Ok, I think that in the episode mentioned in the title, King Worm will put Finn to sleep, where all his memories, fears, and desires will appear. I think that the King Worm will do this to Finn for some reason, like, he wants something, and puting Finn to sleep will let him have it. Oh, here is something I just thought of, Finn is in danger becuase if he stays asleep to long he will get trapped in his mind. What do you think?