103. There appeared to me a great dog, such as he who is called Cerberus among the most ancient writers; he had terrible jaws. It was said that such a dog signifies a guard, that man may not pass from celestial conjugial love to the infernal love of adultery. When there is a passing from that love to this opposite one, the delight appearing almost similar, then there is set such a keeper, as it were, that opposite delights may not communicate.