520. The natural and spiritual elements in every person cohere like soul and body, for without the spiritual element flowing in and animating his natural one, a person would not be human. It follows in consequence that a person who possesses the spiritual marriage also enjoys a happy natural marriage, and on the other hand that a person who is caught up in spiritual adultery is also caught up in natural adultery; and vice versa. Now because all those who are in hell are caught up in the connubial alliance of evil and falsity, and this is the essence of spiritual adultery, and all those who are in heaven are caught up in the marriage of good and truth, and this is the essence of marriage, therefore the whole of hell is called an adultery, and the whole of heaven a marriage.