Twilight wants to know how the universe started, but wants to know more than the "Big Bang" theory. Princess Celestia won't tell her, so who should she turn to? She's even willing to turn to a "what." In order to find her answer, she travels to the astral plane. She wants to know the answer, but will she die in order to get it? Well, this is Twilight we're talking about. But instead of dying, let's go to the astral plane! Nothing will happen there! Nothing fascinating or important whatsoever!