Detail: The center of the bottom register -- Heaven's Gate, Hell Mouth
Beneath the words NIL METVENTES, "fearing nothing," two of the elect look back placidly at the grotesque red devil whose hair stands on end. (Latin horridus means both "horrid" and, of hair, "standing on end.") The elect are welcomed by the angel at the gate of Heaven. On the other side, the red devil and his mates feed souls seriatim into the entrance of Hell, conventionally represented as the mouth of a great monster.