Arcana Coelestia # 165
165. The nakedness of which they were not ashamed means innocence. This is quite clear from what follows. When integrity and innocence left them they were then ashamed of their nakedness, and it seemed disgraceful to them, and so they hid themselves. It is additionally clear from the things represented in the world of spirits that the nakedness of which they were not ashamed means innocence. Indeed when spirits wish to exonerate themselves and prove that they are blameless they present themselves naked to witness their innocence. This is particularly clear with the innocent in heaven, who look like young children, naked, and wearing garlands round them that accord with their particular variety of innocence. But those who do not possess so much innocence appear clothed in splendid and shining clothes - you might call them brightest silk - like angels when seen from time to time by the prophets.
Arcana Coelestia # 10747
10747. Since love is the fire of life and what the life in anyone is like is determined by his love, it may be seen from this what heavenly fire is and what hellish fire is. Heavenly fire consists in love to the Lord and love towards the neighbour, while hellish fire consists in self-love and love of the world and in the consequent craving which goes with all the evils that pour out of these kinds of love as their source.