269. And a rainbow was round about the throne in aspect like an emerald, signifies the appearance of Divine truth in the heavens about the Lord. This is evident from the signification of "a rainbow in aspect like an emerald," as denoting the appearance of Divine truth in its circumference; for "a rainbow round about the throne" signifies Divine truth round about; "in aspect like" signifies appearance. The appearance was like an emerald, because it had reference to the Last Judgment; for the color of this stone is green, and "green" signifies truth obscured. Divine truth in its brightness appears either of the color of heaven, or in various colors in beautiful order like a rainbow; but when obscured it appears of the color of an emerald. The heaven that was obscured was the heaven called "the former heaven," on which judgment was to be executed, and which was about to perish (See Revelation 21:1). On this account "a rainbow round about like an emerald" is mentioned. "Rainbow" signifies Divine truth in the heavens in its order and consequently in its beauty, because there are infinite varieties of truth from good in the heavens, and when these are represented by colors, they present the aspect of a most beautiful rainbow. For this reason "a rainbow" was made the sign of the covenant after the flood (Genesis 9:12-17). (That there are infinite varieties in the heavens see in the work on Heaven and Hell 56, 405, 418, 486; and in the small work onThe Last Judgment 13; and in Arcana Coelestia 684, 690, 3744, 5598, 7236, 7833, 7836, 9002; that colors in heaven appear from the light there, and that they are modifications and variegations of the light, n. 1042, 1043, 1053, 1624, 3993, 4530, 4742, 4922; and that the colors appear various according to the varieties of the states of truth from good, and thence of intelligence and wisdom, n. 4530, 4677, 4922, 9466; that rainbows are seen in heaven, and whence and what they are, n. 1042, 1043, 1623-1625)

4742. 'The tunic of various colours that was on him' means the nature of the appearances which is determined by that of the truths derived from good. This is clear from the meaning of 'the tunic of various colours' as appearances of truth by which the spiritual of the natural is recognized and distinguished, dealt with in 4677, here therefore the nature of those appearances; and for this reason the word 'tunic' is used twice - 'they stripped Joseph of his tunic, the tunic of various colours'. The fact that the nature of these appearances is determined by that of the truths derived from good may be known from appearances of truth when these are manifested visually in the light of heaven, that is, in the next life. There no other light exists than that which comes from the Lord by way of heaven and which emanates from His Divine Truth; for this appears before the eyes of the angels as light, 2776, 3190, 3195, 3222, 3339, 3340, 3636, 3643, 3993, 4302, 4413, 4415. This light varies with each angel, depending on his reception of it. Angels' entire thought is formed by the variegation of that light, as also is man's thought, though he is not conscious of this because in man's case that light falls onto material images or ideas present in his natural or external man which are formed from the light of the world.

Consequently in his case the light of heaven is dimmed to such an extent that he scarcely knows that the light and sight in his understanding are a product of the light of heaven. But in the next life when the sight of the eye is no longer reliant on the light of the world but on that of heaven it is then obvious that his thought is formed from the latter.

[2] When this light passes from heaven into the world of spirits it manifests itself there in the form of various colours, the beauty, variation, and loveliness of these colours being immensely superior to the colours produced by the light of the world; see what has already been presented from experience regarding colours, in 1053, 1624, 3993, 4530, 4677. Because colours in the next life are formed from the light of heaven they are in origin nothing else than appearances of truth derived from good. The source from which truth shines is not truth itself because by itself alone it does not possess any flame; rather, good is the source of it since this is like the flame from which light shines. The nature of good therefore determines the nature of the truth that appears from it, and the nature of the truth is the same as that of the good from which it shines. From this one may see what is meant in the internal sense by 'the tunic of various colours' - that the nature of the appearances is determined by that of the truths derived from good; for as shown already, 'Joseph', to whom the tunic belonged, represents Divine Truth.