In an illustrated Bible my family had when I was growing up, on the pages depicting the encounter, in the desert, between Jesus and the devil, after Jesus has been fasting, so that he might steel himself, or reconcile himself to what he must do, the devil is portrayed as an enormous winged creature, in mid-flight, with a scowling human face, a long tail, and hooves instead of feet, which seemed to me convincing when I first saw it, and tried to comprehend it, and which, as a visible expression of an invisible reality, is not unconvincing to me now.