I've been laboring all summer, really all my adult life, to find words adequate to express the serious playfulness of walking. It's a rewarding but elusive search, and I'm more grateful than not that it will continue for me indefinitely.
Meanwhile, D.B. Johnson's Henry the Bear has said it best so far. "I'm walking to work." A children's book, so simple on the surface, but so eloquent and profound if you read it right.