"Seeing magic I didn't make is something I could apparently always do, but there wasn't any magic I didn't make in my world, so I only knew how to figure out magic I made. And there's some figuring out to that, if it's something I made in a previous incarnation, but it's not on the same level as trying to figure out magic that was designed either by somebody else or not at all. It's sort of like... I don't know if this is a perfect analogy, but you're a dragon. Imagine growing up in a world where you're the only person who uses language. Then you come here, and there's people talking languages all over the place - you have the ability to use them, but there's still kind of an element of skill to it, when before the only person you could talk to was yourself?"