Meditative Running http://www.religiousbook.net/Books/Online_books/Pr/Practices_44.html not only walkers... also ranners can to meditate
Yeah many runners consider running to be their form of meditation, I had something very profound to say about this but I don't remember anymore.
theres a good thought it reminds me of some words that have helped me intellectually "truth is a pathless land" j krishnamurti