Zephiroth is the kingdom in the sky, you can get there through the Vinca but only if you have wings. If not, you can have a friend "fly" you up there by summoning. Once you're up there you will be able to walk across the clouds from island to island (if you have wings). These platforms float freely in the sky. Every six hours, the sky changes from bright and cloudy to dark and starry. There are a few secrets about this map that make it unique.
If you stand/sit/lay down over them without picking them up, and press F3, you can shuffle through different colors and patterns until you find one that suits you.The color of that flower or pillow won't change unless you F3 over it again, or someone else does.