In this state (i.e. the state of having gone fishing), there is a Zen-like satisfaction that suffuses your entire existence. You absolutely glow. Fly Fishing is the most satisfying activity I know (after holding hands). It's you and the fish, and you're trying to outsmart them, and they're some damn smart fish, and you get a very primal satisfaction from pulling your next meal from the river, thrashing at the end of a line. It's a great way to commune with Nature, as is backpacking and climbing mountains. Highly recommended.