 The Cosmic Entity, who rules this realm, is annoyed by Castiel's being awake and attempts to use his own memories and insecurities against him to make him fall back asleep forever.However, Castiel believes that he is "already saved" and will not go to sleep, while demanding to be released.This defiance causes the Cosmic Entity to resurrect him and send him back to Earth, where he is overjoyed to be alive again.