133. Something shall now be said about the heat of heaven. That heat in its essence is love. It goes forth from the Lord as a sun, which is Divine love in the Lord and from the Lord, as has been shown in the preceding chapter. It is evident, therefore, that the heat of heaven, like the light of heaven, is spiritual, because from the same source.# There are two things that go forth from the Lord as a sun, Divine truth and Divine good; Divine truth is manifested in the heavens as light, and Divine good as heat; and yet Divine truth and Divine good are so united that they are not two, but one. Nevertheless, with angels they are separate, for there are angels that receive more of Divine good than of Divine truth, and there are those that receive more of Divine truth than of Divine good. Those who receive more of Divine good are in the Lord's celestial kingdom, and those who receive more of Divine truth are in His spiritual kingdom. Those that receive both in a like degree are the most perfect angels.
# There are two sources of heat and also two sources of light, the sun of the world and the sun of heaven (n. 3338, 5215, 7324).
Heat from the Lord as a sun is affection of love (n. 3636, 3643).
Therefore spiritual heat in its essence is love (n. 2146, 3338, 3339, 6314).