The earth is bound, and it is bound by specific moments and moment-ous feelings of flitting experience. I have a sense that all is finite and nothing can ever be re-retrieved; but the sky is eternal in my mind, ever-present and in a way ever retrievable. It is constant yet constantly changing. When I think of times I have looked up to the sky or been above and looked down below, the feeling is full of the presence of existence, always pure, and never outgrown with the passage of time.