Arcana Coelestia # 4780
4780. 'And mourned over his son many days' means a state, namely one of mourning for lost good and truth. This is clear from the representation of Joseph, to whom 'son' refers here, as Divine Truth, specifically the truths spoken of above in 4776; and from the meaning of 'days' as states, dealt with in 23, 487, 488, 493, 893, 2788, 3785, in this case a state of great mourning since the expression 'many days' is used.
Arcana Coelestia # 3785
3785. 'He said, Behold, it is still high day' means that the state was now in progress. This is clear from the meaning of 'day' as state, dealt with in 23, 487, 488, 493, 893, 2788, 3462, while the meaning of the words 'Behold, it is still high [day]' as in progress is evident from the train of thought.