Arcana Coelestia #486
486. Verse 4 And the days of Man after he beget Seth were eight hundred years; and he beget sons and daughters.
'Days' means periods of time and states in general. 'Years' means periods of time and states in particular. 'Sons and daughters' means the truths and goods that they perceived.
Ezekiel 27:17
17
Judah, and the land of Israel, they were your traffickers: they traded for your merchandise wheat of Minnith, and confections, and honey, and oil, and balm.