Here's a thought: what if we could transform our existence into a spring or an autumn version of a snow globe? Shake the globe, and you can live in an eternity of fluttering pink and white blossoms or, alternatively, in an eternity of flying and falling yellow, red, and orange leaves. Would we in time find these eternal worlds monotonous? I think so. Wistfulness and bittersweetness are wonderful and essential human things, sorrow and all.