21. (8) Consequently the heavenly joys, which the angels have only from this source, are countless, and hardly one of that countless number is known in the world, because today adultery reigns there, even as a result of falsity of doctrine; but they were known in part to the most ancient men.

'Silver' signifies spiritual good or truth from a celestial origin. It also represents the truth of faith, or the truth acquired from self-hood, or proprium. 'Silver' means scientific truth. In Genesis 20:16, it signifies rational truth. 'A piece of silver' signifies a truth, or a knowledge of truth. In the internal sense of the Word, it signifies truth, but also falsity.

(Odkazy: Arcana Coelestia 1551; Exodus 16, 20; Psalms 6, 12, 12:6)