is, of an angel.  The building of the wall was of jasper; but the city itself was pure gold, and like unto pure glass; and the foundations of the wall were adorned with every precious stone.  The twelve gates were twelve pearls; and the street of the city was pure gold, as it were transparent glass (21:1, 2, 16-19, 21).

When man reads these words he understands them merely in accordance with the sense of the letter, namely, that the visible heaven with the earth is to perish, and a new heaven is to come into existence; and upon the new earth the holy city Jerusalem is to descend, with all its dimensions as here described.  But the angels that are with man understand these things in a wholly different way, that is, everything that man understands naturally they understand spiritually. [2] By “the new heaven and the new earth” they understand a new church; by “the city Jerusalem coming down from God out of heaven” they understand its heavenly doctrine revealed by the Lord; by “its length, breadth, and height, which are equal,” and “twelve thousand furlongs,” they understand all the goods and truths of that doctrine in the complex; by its “wall” they understand the truths protecting it; by “the measure of the wall, a hundred and forty-four cubits, which is the measure of a man, that is, of an angel,” they understand all those protecting truths in the complex and their character; by its “twelve gates, which were of pearls,” they understand introductory truths, “pearls” signifying such truths; by “the foundations of the wall, which were of precious stones,” they understand the knowledge on which that doctrine is founded; by “the gold like unto pure glass,” of which the city and its street were made, they understand the good of love which makes the doctrine and its truths transparent.  Thus do the angels perceive all these things; and therefore not as man perceives them.  The natural ideas of man thus pass into the spiritual ideas with the angels without their knowing anything of the sense of the letter of the Word, that is, about “a new heaven and a new earth,” “a new city Jerusalem,” its “wall, the foundations of the wall, and its dimensions.”  And yet the thoughts of angels make one with the thoughts of man, because they correspond; they make one almost the same as the words of a speaker make one with the understanding of them by a hearer who attends solely to the meaning and not to the words.  All this shows how heaven is conjoined with man by means of the Word:  [3] Let us take another example from the Word: 

In that day there shall be a highway from Egypt to Assyria, and Assyria shall come into Egypt and Egypt into Assyria; and the Egyptians shall serve Assyria.  In that day shall Israel be a third to Egypt and to Assyria, a blessing in the midst of the land, Which Jehovah of hosts shall bless, saying, Blessed be My people the Egyptian, and the Assyrian the work of My hands, and Israel Mine inheritance (Isaiah 19:23-25).