here's a story from paulo coehlo's "alchemist" that comes to my mind when thinking about this. a wise man tells a boy to go enjoy looking around the palace and the garden. but he needs to carr around a spoon full of oil without spilling it. at first he is unable to enjoy the sights because he is too worried about the oil. in the second attempt he enjoys his walk, but comes back to the wise man with an empty spoon. then the wise man says, “the secret to happiness is to see all marvels of the world, and never to forget the drops of oil in the spoon.”
how about: the secret of live is to notice both what is on and in the pavements? :-P