This section deals with the jealousy of those whose love for their partner is spiritual, the next with the jealousy of those whose love is natural, and then with the jealousy of those who enjoy truly conjugial love. In the case of those whose love is spiritual, jealousy is varied because of the variation in their love; for love, whether spiritual or natural, cannot ever be exactly the same in two people, much less in more than two.

[2] The reason why spiritual jealousy, that is, among spiritual people, is like a fire blazing out against whose who attack their love for their partner is that the beginning of their love lies in the inner regions of them both; and their love progresses from its beginning through what is derived from that right to its final stage. It is by this and at the same time by the first stage that the intermediate ones, those that belong to the mind and body, are held together in a loving embrace. Since these people are spiritual, they look towards union as their aim in marriage, and the spiritual repose it gives and its delights. Since they have then banished disunity from their dispositions, their jealousy is like a fire stirred up and shooting out at its attackers.

[3] The reason why it is also like a dreadful fear is that their spiritual love aims at making them one. If therefore an accident happens, or an appearance of separation should come about, they experience fear, as if dreading the pulling apart of two parts which are joined. I was given this description of jealousy from heaven by those who enjoy spiritual conjugial love. For there is natural conjugial love, spiritual conjugial love and celestial conjugial love. The natural and celestial forms of love and the jealousy that accompanies them will be the subject of the following two sections.