John Updike said that, referring to writing novels. But it sure rings true for me and drawing. When I'm on, it's the easiest thing in the world. I'm almost a bystander, marveling at what my hand is doing. when I'm not, everything's a clumsy struggle, and the more I "try", the worse it gets.
By the way, Self Portrait Marathoners, I've finally updated the slide show on Flickr. The only thing is, I haven't figured out an easy way to order the pictures, so they're mostly but not exclusively alphabetical.