“To be or not to be?”, that is only the second question we have to ask ourselves: the first is: Are we? or Are we not? Do we exist or is this all just a dream? Descartes had something to say about all this, and it’s to Descartes that we will go, as we begin to contemplate that one thing that makes us appreciate the way it feels to run across the Earth, to feel the sweat, effort and joy of getting our miles in and moving these bodies that we either are or inhabit. Descarte can help us begin the process of understanding why, as we run a race or by ourselves on the open road: we feel, very much alive.