"It doesn't matter how insane it is! The fact is that Faust hates Platinum, and wants to see Equestria destroyed in revenge. And it gets worse, because she hates Luna, and because she was raised by Platinum, hates Celestia too. Well, probably. She also wants to enact something called 'the plan,' whatever that is. I'm guessing it's nothing good, and she wants to do it to the entire world. Do you see why I left her locked up down there now?"