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.

8421. 'And it shall be on the sixth day' means at the end of each state. This is clear from the meaning of 'day' is state, dealt with in 23, 487, 488, 493, 2788, 3462, 3785, 4850, 7680; and from the meaning of 'the sixth' as the end of a state. The reason why 'the sixth day' means the end of a state is that 'seven days' or 'a week' means a whole period or complete state, 2044, 3845, 6508, and therefore the day before the seventh, which is 'the sixth', means the end of that state, while the day after, which is 'the eighth', means the beginning of the same state, 2044, 8400.