We sat in silence for a while. I gazed through the window at the night sky, wondering idly at all that space, all that blackness, all that nothing, and as I sat there looking up at the emptiness I began thinking about the creek, the hills, the woods, the water... how everything goes around and around and never really changes. How life recycles everything it uses. How the end product of one process becomes the starting point of another, how each generation of living things depends on the chemicals released by the generations that have proceeded it... I don't know why I was thinking about it. It just seemed to occur to me.