31. The Divine that flows in from the Lord and is received in the third or inmost heaven is called celestial, and in consequence the angels there are called celestial angels; the Divine that flows in from the Lord and is received in the second or middle heaven is called spiritual, and in consequence the angels there are called spiritual angels; while the Divine that flows in from the Lord and is received in the outmost or first heaven is called natural; but as the natural of that heaven is not like the natural of the world, but has the spiritual and the celestial within it, that heaven is called the spiritual-natural and the celestial-natural, and in consequence the angels there are called spiritual-natural and celestial-natural.{1} Those who receive influx from the middle or second heaven, which is the spiritual heaven, are called spiritual-natural; and those who receive influx from the third or inmost heaven, which is the celestial heaven, are called celestial-natural. The spiritual-natural angels and the celestial-natural angels are distinct from each other; nevertheless they constitute one heaven, because they are in one degree.
{Footnote 1} There are three heavens, inmost, middle, and outmost, or third, second, and first (n. 684 9594, 10270). Goods therein also follow in triple order (n. 4938, 4939, 9992, 10005, 10017). The good of the inmost or third heaven is called celestial, the good of the middle or second is called spiritual, and the good of the outmost or first, spiritual-natural (n. 4279, 4286, 4938, 4939, 9992, 10005, 10017, 10068).
32. In each heaven there is an internal and an external; those in the internal are called there internal angels, while those in the external are called external angels. The internal and the external in the heavens, or in each heaven, hold the same relation as the voluntary and intellectual in man-the internal corresponding to the voluntary, and the external to the intellectual. Everything voluntary has its intellectual; one cannot exist without the other. The voluntary may be compared to a flame and the intellectual to the light therefrom.
33. Let it be clearly understood that with the angels it is the interiors that cause them to be in one heaven or another; for as their interiors are more open to the Lord they are in a more interior heaven. There are three degrees of interiors in each angel and spirit, and also in man. Those in whom the third degree is opened are in the inmost heaven. Those in whom the second degree is opened, or only the first, are in the middle or in the outmost heaven. The interiors are opened by reception of Divine good and Divine truth. Those who are affected by Divine truths and admit them at once into the life, thus into the will and into action therefrom, are in the inmost or third heaven, and have their place there in accordance with their reception of good from affection for truth. Those who do not admit truths at once into the will but into the memory, and thence into the understanding, and from the understanding will and do them, are in the middle or second heaven. But those who live morally and who believe in a Divine, and who care very little about being taught, are in the outmost or first heaven.{1} From this it is clear that the states of the interiors are what make heaven, and that heaven is within everyone, and not outside of him; as the Lord teaches when He says:
The kingdom of God cometh not with observation, neither shall they say, Lo here, or Lo there; for behold the kingdom of God ye have within you (Luke 17:20, 21).
{Footnote 1} There are as many degrees of life in man as there are heavens, and these are opened after death in accordance with his life (n. 3747, 9594). Heaven is in man (n. 3884). Therefore he that has received heaven into himself in the world, comes into heaven after death (n. 10717).
34. Furthermore, all perfection increases towards interiors and decreases towards exteriors, since interiors are nearer to the Divine, and are in themselves pure, while exteriors are more remote from the Divine and are in themselves grosser.{1} Intelligence, wisdom, love, everything good and the resulting happiness, are what constitute angelic perfection; but not happiness apart from these, for such happiness is external and not internal. Because in the angels of the inmost heaven the interiors have been opened in the third degree their perfection immeasurably surpasses the perfection of angels in the middle heaven, whose interiors have been opened in the second degree. So the perfection of these angels exceeds in like measure the perfection of angels of the outmost heaven.
{Footnote 1} Interiors are more perfect because nearer to the Divine (n. 3405, 5146, 5147). In the internal there are thousands and thousands of things that appear in the external as one general thing (n. 5707). As far as man is raised from externals towards interiors, so far he comes into light and thus into intelligence and the elevation is like rising out of a cloud into clearness (n. 4598, 6183, 6313).
35. Because of this distinction an angel of one heaven cannot go among the angels of another heaven, that is, no one can ascend from a lower heaven and no one can descend from a higher heaven. One ascending from a lower heaven is seized with a distress even to anguish, and is unable to see those who are there, still less to talk with them; while one descending from a higher heaven is deprived of his wisdom, stammers in his speech, and is in despair. There were some from the outmost heaven who had not yet been taught that the interiors of angels are what constitute heaven, and who believed that they might come into a higher heavenly happiness by simply gaining access to a heaven where higher angels are. These were permitted to enter among such angels. But when they were there they could see no one, however much they searched, although there was a great multitude present; for the interiors of the newcomers not having been opened in the same degree as the interiors of the angels there, their sight was not so opened. Presently they were seized with such anguish of heart that they scarcely knew whether they were alive or not. Therefore they hastily betook themselves to the heaven from which they came, glad to get back among their like, and pledging themselves that they would no longer covet higher things than were in agreement with their life. Again, I have seen some let down from a higher heaven; and these were deprived of their wisdom until they no longer knew what their own heaven was. It is otherwise when, as is often done, angels are raised up by the Lord out of a lower heaven into a higher that they may behold its glory; for then they are prepared beforehand, and are encompassed by intermediate angels, through whom they have communication with those they come among. From all this it is plain that the three heavens are entirely distinct from each other.
36. Those, however, who are in the same heaven can affiliate with any who are there; but the delights of such affiliation are measured by the kinships of good they have come into; of which more will be said in the following chapters.