http://fish.blogs.nytimes.com/2009/03/22/my-life-on-the-court/

The marvel is that focused intensity can be achieved even in the act of failure, even by someone who knows what to do but most of the time can’t quite do it. And it is for that intensity — not its object or its goal — that one plays, for in those moments of surrender to the game all one’s troubles, all one’s strivings, all one’s petty irritations fall away.