2455. And she became a pillar of salt. That this signifies that all the good of truth was laid waste, is evident from the signification of a "pillar," and from the signification of "salt." In the original language a "pillar" is expressed by a word which signifies a standing still, not by one that means a pillar erected for worship, or for a sign, or for a witness; so that by the "pillar of salt" is here signified that it, namely, the truth signified by Lot's wife, stood vastated (n. 2454). Truth is said to be vastated, or laid waste, when there is no longer any good in it, vastation itself being signified by "salt."
 As most things in the Word have a double sense, namely, the genuine sense and its opposite, so also has "salt;" in the genuine sense it signifies the affection of truth; in the opposite sense, the vastation of the affection of truth, that is, of good in truth. That "salt" signifies the affection of truth may be seen in Exod. 30:35; Lev. 2:13; Matt. 5:13; Mark 9:49, 50; Luke 14:34, 35; and that it signifies the vastation of the affection of truth is evident from the following passages. In Moses:
The whole land shall be brimstone and salt, a burning; it shall not be sown, it shall not bear, neither shall any herb spring up therein; like the overthrow of Sodom and Gomorrah, Admah and Zeboim (Deut. 29:23);
where "brimstone" denotes the vastation of good; and "salt" the vastation of truth: that the subject is vastation is evident from every particular.
 In Zephaniah:
Moab shall be as Sodom, and the sons of Ammon as Gomorrah; a place that is left to the nettle, and a pit of salt, and an eternal desolation (Zeph. 2:9);
where a "place that is left to the nettle" denotes vastated good, and a "pit of salt" vastated truth; for the expression "place left to the nettle" refers to Sodom, by which is signified evil or vastated good, and a "pit of salt" to Gomorrah, by which is signified falsity or vastated truth, as already shown. That the subject is vastation is manifest, for it is said an "eternal desolation." In Jeremiah:
He that maketh flesh his arm shall be like a bare shrub in the solitude, and shall not see when good cometh, but shall inhabit the parched places in the wilderness, a salt land, and not inhabited (Jer. 17:5-6);
where "parched places" denote vastated goods, and a "salt land" vastated truths.
 In David:
Jehovah maketh rivers into a wilderness, and water springs into dry ground, a fruitful land into a salt one, for the wickedness of them that dwell therein (Ps. 107:33-34);
a "fruitful land made into a salt one" denotes the vastation of good in truth. In Ezekiel:
The miry places thereof and the marshes thereof shall not be healed; they shall be given up to salt (Ezek. 47:11);
to be "given up to salt" denotes being altogether vastated as to truth. As "salt" signified vastation, and "cities" the doctrinal things of truth (shown at n. 402, 2268, 2428, 2451), in ancient times when cities were destroyed they were sown with salt, in order to prevent their being rebuilt (Judges 9:45). The words before us therefore denote the fourth state of that church which was represented by Lot, which state was that all truth was vastated as to good.