Arcana Coelestia #23
23. Nothing is more common in the Word than for the word 'day' to be used to mean the particular time at which events take place, as in Isaiah,
The day of Jehovah is near. Behold, the day of Jehovah comes. I will make heaven tremble, and the earth will be shaken out of its place, on the day of My fierce anger. Its time is close at hand, and its days will not be prolonged. Isaiah 13:6, 9, 13, 22.
And in the same prophet,
Her antiquity is in the days of antiquity. On that day Tyre will be forgotten for seventy years, like the days of one king. Isaiah 23:7, 15.
Since 'day' stands for the particular time it also stands for the state associated with that particular time, as in Jeremiah, Woe to us, for the day has declined, for the shadows of evening have lengthened! Jeremiah 6:4
And in the same prophet,
If you break My covenant that is for the day and My covenant that is for the night, so that there is neither daytime nor night at their appointed time. Jeremiah 33:20, 25.
Also,
Renew our days as of old. Lamentations 5:21.
Arcana Coelestia #3217
3217. When angels' discussion has to do with the understanding part of the mind, horses appear in the world of spirits below them, that is, in the communities which correspond to them. The size, shape, colour, and stance of the horses depends on the ideas which the angels have concerning the understanding. The horses also carry differing adornments. There is also a place quite deep down and a little towards the right which is called the abode of the intelligent. There horses are seen constantly, the reason being that those there are engaged in thought about the understanding; and when the angels who are engaged in a discussion about the understanding flow into the thoughts of those spirits, horses are seen. From this I have come to see what was meant by the horses seen by the prophets, and also by the horses mentioned in the Word, namely aspects of the understanding, 2760-2762.