There is something about the shadow of a tree on a wall that just works for me.
maybe it is the simplicity
maybe it is the impermanence
The thought that the sun can move, will move
and even when it returns to this position in just slightly less that or more than twenty four hours
well then the tree has moved
maybe it has grown
maybe the leaves have fallen blown by a strong wind or simply gravity
and don't get me started on the buildings
and the ever changing sky