370. This illustrates indeed the nature of the jealous fire that a polygamous conjugial love blazes up into, namely, into anger and vengeance - into anger in the mild-tempered, and into vengeance in the savage-tempered. And the reason is that their love is natural and does not partake of anything spiritual. This follows from what we demonstrated in the chapter on polygamy and the points made there, that polygamy is lechery (no. 345), and that a polygamist is natural and cannot become spiritual as long as he remains a polygamist (no. 347). Jealous fire in natural people who are monogamists, however, is of another character. Their love is not set on fire in the same way against the women, but against the trespassers. Towards them it becomes anger, and towards the women, coldness. Not so in the case of polygamists. The fire of their jealousness blazes also with a vengeful fury. This, too, is one of the reasons that the concubines and wives of polygamists are for the most part, after death, set free, and assigned to unguarded women's residences, there to make various articles connected with the crafts of women.