Walking, much like singing, steadies the mind. When we place one foot in front of the other, we can feel the body lean and sway as we move forward. The first steps may be slow, but gradually we find our gait. Though we may require effort to break our inertia, our willingness to move is soon requited. At first, we notice the mind doing the walking. Then the body soon takes over, and with that, our thoughts are free to flow.
— Stephen Levine, Unattended Sorrow