–What is the definition of a heart in Kingdom Hearts?
Nomura: It is the theme of the series. To explain it simply, a person has a body, a soul, and a heart. As an image, the soul is the life source, without it a person would be dead. Since the heart doesn’t have a form, memories play an important part in forming a heart. Also, the heart isn’t limited to people, but to all things. I tried to explain this concept to Disney, and they merely said that it must be an Eastern way of thinking. It may be interesting how overseas players think of it.
Translation of interview available here.