911. Verse 18. And the structure of the wall thereof was of jasper, signifies that every Divine truth in the sense of the letter of the Word with the men of that church is translucent from the Divine truth in the spiritual sense. By "a wall" is signified the Word in the sense of the letter (n. 898); by its "structure" is signified the all of it, because the all of it is in the structure. By "jasper" the same is signified as by "precious stone" in general, and by "precious stone," in reference to the Word, is signified Divine truth in the sense of the letter of the Word translucent from the Divine truth in the spiritual sense (n. 231, 540, 726, 823); that the same is signified by "jasper," may be seen above (n. 897). The reason why it is translucent, is, because the Divine truth, in the sense of the letter is in natural light, and the Divine truth, in the spiritual sense is in spiritual light, wherefore when spiritual light flows into natural light with a man who is reading the Word, he is enlightened, and sees truths there, for the objects of spiritual light are truths. The Word also in the sense of the letter is of such a nature that the more a man is enlightened by the influx of the light of heaven, so much the more does he see truths in their connection and thence in their form; and the more he so sees them, so much the more interiorly is his rational mind opened, for the rational is the very receptacle of the light of heaven.