Arcana Coelestia #8109
8109. 'So as to go by day and by night' means life in both states. This is clear from the meaning of 'going' and 'travelling' as life, dealt with in 3335, 3690, 4882, 5493, 5605; and from the meaning of 'day' as a state of enlightenment and 'night' as a state of dimness, dealt with immediately above in 8106, 8108, thus both states.