The 'sun' in the Word, when referring to the Lord, signifies His divine love and wisdom. Because the sun represents the Lord, with respect to His divine love wisdom, since ancient times even to the present day, worship is done and temples are built facing the rising sun. The sun signifies celestial and spiritual love and also the Lord regarding His divine love, and so the good of love from Him. In the opposite sense, it signifies a denial of the Lord's divinity, and so adulteration of the good of love.

In Genesis 15:12, 19:23, this signifies the time and state before consummation; for the sun signifies the Lord, and the celestial things of love and charity; so its setting represents the last time of the church. Its rising signifies a coming of the Lord, and the first period of a new church. (Arcana Coelestia 1837, 1859)

In Jeremiah 8:1, this signifies self-love and its lusts. (Arcana Coelestia 2441)

In Revelation 12:1, this signifies love. (Arcana Coelestia 253, Arcana Coelestia 3272[2])

Sun signifies the good of love. (Arcana Coelestia 4918[3]）

(Odkazy: Apocalypse Explained 709)

2130. As regards the second representation, that is to say, the idea of a Last Judgement which takes place before the eyes of the good when they are being admitted into heaven, let that too be described. In the Word it is said that the door was shut, so that they could no longer be admitted; and that they had no oil, arrived too late, and therefore were not admitted, statements which also mean a Last-Judgement state. The situation with these matters and how they are to be understood has been shown to me.

[2] I heard communities of spirits declaring in a clear voice, one community after another, that a wolf had wished to carry them off but that the Lord rescued them, and so they were restored to Him, and on that account rejoiced from the depths of their heart. Indeed they had been without hope, and so were afraid that the door had been shut, and that they had arrived too late to be admitted. Such thought had been instilled into them by those called wolves, but it vanished on their being admitted, that is, being received, by angelic communities. Being admitted into heaven is nothing else. The admission which I witnessed seemed to proceed continuously community by community, up to twelve of them, the admission, that is, the reception, of the twelfth being more difficult than that of the previous eleven. After that about eight more communities were also admitted, which, it was pointed out to me, were composed of females. Having witnessed all this I was told that this is how the process of admission, that is, of being received into heavenly communities is seen. They proceed in an orderly continuation from one place to another. I was also told that heaven can never be filled up, still less the door be shut, but that the more who enter, the more blessing and happiness there is for those in heaven, because their unanimity is made that much stronger.

[3] After these had been admitted it did at that point seem as though heaven was shut; for there were still more who wished after that to be admitted, that is, to be received. But they were told in reply that they could not yet be let in. This is meant by those arriving too late, by the door being shut, by their knocking, and by the statement about their having no oil in their lamps. The reason they were not admitted was that they were not yet ready to move among angelic communities where mutual love exists, for, as stated above towards the end of 2119, people who in the world have lived charitably disposed towards the neighbour are raised up by the Lord into heaven gradually.

[4] There were also other spirits who did not know what heaven is, namely mutual love, and who also at that time wished to be admitted. They imagined it was just a matter of being admitted. They received the reply however that it was not yet time for them, but that they would be admitted at another time when they were ready for it. The reason why twelve communities were seen was that 'twelve' means everything comprising faith, as stated above towards the end of 2129.