147. (7) Chastity in marriage comes about through total renunciation of licentious relationships in accordance with religion. The reason is that chastity is the removal of unchasteness. It is a universal rule that to the extent anyone removes evil, to the same extent an opportunity is given for goodness to succeed it. And furthermore, to the extent anyone hates evil, to the same extent he loves goodness. The reverse is also the case as well. Consequently it follows that to the extent anyone renounces licentiousness, to the same extent he allows the chastity of marriage to enter. The fact that conjugial love is purified and refined according to one's renunciation of licentious relationships - this everyone sees from common perception if he only hears it said, thus without prior arguments. But because all people do not have common perception, it is useful that it be clarified by arguments too. The arguments are as follows: Conjugial love cools as soon as it becomes divided, and the growing coldness causes it to die, it being the heat of unchaste love that kills it. For two opposing feelings of warmth cannot exist together at the same time without the one casting out the other and depriving it of its vitality. When the warmth of conjugial love displaces and casts out the heat of licentious love, therefore, conjugial love begins to grow pleasantly warm and, from a sensation of its delights, to bud and blossom, like an orchard or rose garden in springtime. The difference is that an orchard or rose garden does so in response to the vernal warmth of light and heat from the sun of the natural world, while conjugial love does so in response to the vernal warmth of light and heat from the sun of the spiritual world.