I'm back for more questions guys, now that I've just beaten Ventus's story. In the beginning of the game it shows Ventus on a tree, he summons a key blade and shoots it into the sky. I didn't find any explanation for this, why was he put on Destiny Islands? Also after beating his story he disappears and is then in a certain... State where he feels warmth and says it's your heart, that's the feeling of warmth, so what was that about? If this is explained later on please include spoiler tags.