"No, I don't think so. I mean - sometimes, when a person is accomplished enough or respected enough or content enough, they get their wings, and become one of the winged ones. They're immortal until killed, and very hard to kill, and - and I don't know how to begin to explain what a Sphere is, but they have Spheres. If you haven't even heard of them, then... I must be a lot farther from home than I thought."