Selection from Apocalypse Explained ~ Emanuel Swedenborg
The Word in the sense of the letter appears very simple, and yet there is stored up in it the wisdom of the three heavens, for each least particular of it contains interior and more interior senses — an interior sense such as exists in the first heaven, a still more interior sense such as exists in the second heaven, and an inmost sense such as exists in the third heaven. These senses are in the sense of the letter, one within the other, and are evolved therefrom one after the other, each from its own heaven, when a man who is led by the Lord reads the Word. These interior senses differ in the degree of light and wisdom according to the heavens, and yet they make one by influx, and thus by correspondences. ... All this makes clear how the Word was inspired by the Divine, and that it was written from such an inspiration to which nothing else in the world can in anywise be compared. The arcana of wisdom of the three heavens contained in it are the mystical things of which many have spoken.(to be continued)
(Apocalypse Explained 1079:2)