"All of these questions and their answers are connected. A nobody is a being that has lost its heart, but has a strong enough will to continue living. If a nobody is strong enough and retains its memories as well, it will have a human form like myself; if it does not, it will look like the Dusk you saw earlier." Marluxia waited for a moment, allowing the information to sink in, giving Kuja a sly look. "Nobodies do not age, nor will we ever die of natural causes. I would say, we are stronger and better than most regular people. And all that for such a small price."