128. The Divine Truth is light to the angels because angels are spiritual and not natural. Spiritual beings see from their Sun and natural beings from theirs. It is from Divine Truth that angels have understanding, and their understanding is their internal sight which flows into and produces their external sight. Therefore, in heaven whatever is seen from the Lord as the Sun appears in light.# This being the source of light in heaven, the light there is varied in accordance with the reception of Divine Truth from the Lord, or what is the same, in accordance with the intelligence and wisdom in which the angels are, thus differently in the celestial kingdom and in the spiritual kingdom and differently in each particular society. In the celestial kingdom, the light appears flaming because the angels there receive light from the Lord as a Sun; but in the spiritual kingdom, the light is white because the angels there receive light from the Lord as a Moon (see above n. 118). So, too, the light is not the same in one society as in another. It differs in each society, those in the middle being in greater light and those around them in less light (see n. 43). In a word, the angels have light## in the same degree in which they are receptions of Divine Truth, that is, in intelligence and wisdom from the Lord. This is why the angels of heaven are called angels of light. # The light of heaven illumines both the sight and the understanding of angels and spirits (n. 2776, 3138). ## The light in heaven is in harmony with the intelligence and wisdom of the angels (n. 1524, 1529, 1530, 3339). Differences of light in the heavens are as many as there are angelic societies; and as there are in the heavens endless varieties of good and truth, so are there of wisdom and intelligence (n. 684, 690, 3241, 3744, 3745, 4414, 5598, 7236, 7833, 7836).