Daisy's stomach tensed a little as Gaia tugged on the gem. "... Well, back before I fused auras with the crat, I looked rather normal on the outside," she said. "That gem was within me; it serves as a conductor and storage area for the celestial powers I have. When I got switched to this realm, though, it sort of forced itself through the back of my navel and... well, filled the hole." The celestial wolf grinned sheepishly. "Think of it like a hernia, I suppose. But either way, it's my belly button now."