KH1: Ansem's Report 13

Where does the body go when it separates from the heart? If the soul remains within the body, is it still considered to be deceased?

When the heart returns to the Heartless, the physical form disappears. But that is merely true in this world. Perhaps the body exists in another form in another world.

If that is the case, then it is possible for one to exist in two worlds.

A being that is neither darkness nor light; belonging nowhere; abandoned by its heart; a mere shell of its former self.

The relation between the heart and body is complex. However, I am certain that if your self exists here, then by definition, the other cannot truly "exist."

The other, the one which does not exist, shall be dubbed, "Nobody."