87. Since love and fire mutually correspond, that sun appears before the eyes of the angels as fiery; for angels cannot see love with their eyes, but they see in the place of love what corresponds to it. For angels, equally with men, have an internal and an external; it is their internal that thinks and is wise, and that wills and loves; it is their external that feels, sees, speaks and acts. All their externals are correspondences of internals; but the correspondences are spiritual, not natural. Moreover, Divine love is felt as fire by spiritual beings. For this reason "fire," when mentioned in the Word, signifies love. In the Israelitish Church, "holy fire" signified love; and this is why, in prayers to God, it is customary to ask that "heavenly fire," that is Divine Love, "may kindle the heart."