From Parenting Magazine, in an article by Dahlia Lithwick:
There's a lovely Zen parable (seized upon by no less a mythical figure than basketball coaching legend Phil Jackson) about a meditation master, Achaan Chaa. When his students came to him and asked how he could be happy in a world of such impermanence, the master held up a glass and said, "For me, this glass is already broken. I enjoy it; I drink out of it. But when I put this glass on a shelf and my elbow brushes it and it falls to the ground and shatters, I say, 'Of course.' When I understand that this glass is already broken, every moment with it is precious."