For months I have been walking past an oak on the hill path, looking up among the tops of spruces to search vainly for the tree that sent this arm out to bask in the sun. Finally, I look down to find the place where the branch meets the trunk, and discover this is the whole oak tree, growing parallel to the ground, contrary to gravity. I take this as a sign that in the darkness, even the laws of nature can be overridden to find the light.