And this time, Dean flat out laughed, but it wasn't mocking. It was more out of amusement than anything else. "That wasn't my intention. And I think that has to do with becoming human. When an angel gives up his grace and becomes human, he needs to be born into the world, and in the process he forgets that he ever was an angel. He becomes another person. So if they happen to regain their grace again, they're dealing with two people -- the angel that they were before, and the human that they spent so many years becoming."