• You can exist without your soul, you know, as long as your brain and heart are still working. But you’ll have no sense of self anymore, no memory, no . . . anything. There’s no chance at all of recovery. You’ll just — exist. As an empty shell. And your soul is gone forever . . . lost.

    Harry Potter and the Prisoner of Azkaban ch. 12 (1999). Ellipsis in the original.