136. Angels, like men, have understanding and will. The light of heaven constitutes the life of their understanding, because that light is Divine truth and Divine wisdom therefrom; and the heat of heaven constitutes the life of their will, because that heat is Divine good and Divine love therefrom. The veriest life of the angels is from heat, and from light only so far as heat is in it. That life is from heat is shown by the fact that when heat is taken away life perishes. The same is true of faith without love or of truth without good; since the truth that is called truth of faith is light, and the good that is called good of love is heat. # This is more clearly shown by the heat and light of the world, to which the heat and light of heaven correspond. By the world's heat when conjoined with light, as in spring and summer, all things on the earth are quickened and grow, but by light separate from heat nothing is quickened or grows, but everything lies torpid and dies. They are not conjoined in winter, when heat is absent though light remains. From this correspondence heaven is called paradise, since truth is there joined with good, or faith with love, as light is with heat in springtime on the earth. All this makes more clear the truth set forth in its own chapter (n. 13-19), that the Divine of the Lord in Heaven is love to Him and charity towards the neighbor. # Truths apart from good are not in themselves truths because they have no life; for truths have all their life from good (n. 9603). Thus truths apart from good are like a body without a soul (n. 3180, 9154). Truths apart from good are not accepted by the Lord (n. 4368). What truth apart from good, that is, what faith apart from love is, and what truth from good or faith from love is (n. 1949-1951, 1964, 5830, 5951). It amounts to the same thing whether you say truth or faith, or whether you say good or love, since truth is of faith and good is of love (n. 2839, 4352, 4353, 4997, 7178, 7623, 7624, 10367).