“Running is analogue. It is hunter-gatherer. It is Palaeo. It is linear. It is long-form thought. It is an uninterrupted conversation with yourself. It is a journey back through modernity to your body. It is a way out of technology. It is a way to be free.” — Vybarr Cregan-Reid

     I would add that it is meditative (usually, unless you run with a crazy sniffer-dog).