“Time, like an ever rolling stream, bears all its sons away; they fly, forgotten, as a dream dies at the opening day.”  (Isaac Watts)  Days wax and wane; a life begins, develops and dies; entire civilizations thrive and decline.  Time has a fractal quality about it: no matter the degree of magnification, we see the same overall shape, the same cycle of coming into existence and then going away.  Hours, years, millennia…  makes no difference.  And we are both observers of the cycles and participants in them.