You already know that hearts are important to us. I really can't stress enough just how important they are-- I don't think people outside of where we come from will understand that, but that's okay.

I already explained to you how Heartless and Nobodies are formed. We all have hearts, even worlds. When a person loses theirs, they become an abomination. When a world loses its, it dies. The Heartless get them then, the hearts. So, the question is, how would one take back these hearts that were stolen?

And that's where Kingdom Hearts comes in.