"An ancient race that went extinct saving this dimension from a powerful force called the Nightmare," Pinkie replied. "Oh! That's why I felt slight deja vu when we were up against Nightmare Moon! Huh, funny how past lives can weasel their way back into your current one. But that's beside the point. What's important is that, towards the end of Kirby's life, some kind of wizard or something is going to do something magical to Kirby that will reincarnate him as me. I don't know exactly how or why, but that's the best explanation I can give right now."