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.

6608. The light of understanding has been given to me, taken away, lessened, and moderated when I have been thinking, speaking, and writing. This has happened frequently, and I have been allowed to perceive the variations and differences. The actual light I perceived as illumination that shone on the substances of my inward sight just as the sun gives light to the physical organs of sight. This general illumination made matters of thought visible just as earthly objects become visible when the eye is supplied with light. I was told that those variations in the light of understanding arose from different kinds of contact with heavenly communities.