Having gotten into meditation and discovering the concept of "mindfulness," I inevitably wondered just how well the Doctor knows himself and keeps cool and centered. (Inevitable because I'm a sadly obsessed Doctor Who fan, of course.) The unsurprising answer is, "He doesn't." But you might be surprised at my vote for which Doctor comes closest to that ideal, and why I think it's fortunate that the Doctor is NOT a Zen Master of Time and Space.