8106. By day in a pillar of cloud. That this signifies that when there was a state of enlightenment it was tempered by obscurity of truth, is evident from the signification of “by day,” or “in the day,” as being in a state of enlightenment; for the times of day, as morning, noon, evening, and night, correspond to the various degrees of enlightenment which belong to intelligence and wisdom in the other life (see n. 5672, 5962, 6110); whence “day” denotes a state of enlightenment or clear perception, and “night” a state of no enlightenment, or of obscure perception (n. 7680); and from the signification of “cloud,” as being obscurity of truth, because a cloud takes away the brightness of light from the sun, and also tempers it.

[2] In the Word throughout it is said that Jehovah appeared “in a cloud,” and that He was “girded with a cloud,” also that “beneath His feet was a cloud;” in which passages by “cloud” is meant obscurity of truth, specifically, the literal sense of the Word, for relatively to the internal sense this sense is obscurity of truth (see the preface to Genesis 18; also n. 4391, 5922, 6343, 6752). This was signified by the “cloud” when the Lord was seen by Peter, James, and John in glory (Luke 9:34); when from Mount Sinai by the people; and when by Moses upon his entering to Him there (Exodus 19:9; 20:18; 24:15-18; 34:5); and also by the circumstance that the Lord so often said that He “would come in the clouds of heaven” (Matthew 24:30; 26:63-64; Mark 13:26; 14:61-62; Luke 21:27).

[3] The literal sense of the Word is called a “cloud,” because the internal sense, which is called “glory,” cannot be comprehended by man, except one who is regenerated, and is also enlightened. If the internal sense of the Word, or truth Divine in its glory, were to appear before a man who is not regenerated, it would be like thick darkness, in which he would see nothing at all, and by which he would also be blinded, that is, would believe nothing. From all this it can be seen what is signified by a “cloud by day,” namely, obscurity of truth; and when the Word is treated of, the literal sense.

[4] It is said “in a pillar of cloud and of fire,” because by “a pillar” is signified a prop which supports (see Jeremiah 1:18 , Psalms 75:3 , Revelation 3:12; Job 9:6); and it is predicated of the natural, because the natural is like a prop or base to the spiritual; for the spiritual closes in the natural, and there rests. Hence it is that the feet of the angel descending from heaven appeared “as pillars of fire” (Revelation 10:1); for by “feet” is signified the natural (see n. 2162, 3147, 3761, 3986, 4280, 4938-4952, 5327, 5328).

7680. All that day, and all the night. That this signifies in everything of the perception both obscure and not obscure with the infesters, namely, there was destruction, is evident from the signification of “day,” as being a state of perception not obscure; and from the signification of “night,” as being a state of obscure perception; for the times of the day - morning, noon, evening, and night, correspond to the states of enlightenment that belong to intelligence and wisdom (seen. 5672, 6110), thus to perceptions; and so in general do day and night. It is here said “perceptions,” not “states of enlightenment,” because the evil who infest have no enlightenment, and yet have perception; but they have perception only so long as any knowledge of truth and good from the church in which they have lived remains with them, for by means of truth and good they communicate with those who are in heaven. But when they have been deprived of these knowledges, which is done when they have been devastated, they then no longer have any perception. The infernals can indeed confirm their evils, and also their falsities, but this is not perception. Perception is to see that truth is truth, and good good; and also that evil is evil, and falsity falsity; but it is not perception to see truth as falsity and good as evil; or the reverse, evil as good and falsity as truth. They who do this, instead of perception, have phantasy, which produces an appearance of perception, whereby such know how to confirm falsities and evils by such things as are obvious to the senses and are in favor of concupiscences.