A rainbow shape with something grasslike and green at its center also appeared, and I sensed a kind of sun off to the side, out of sight, gleaming, and giving off a light so bright that it cannot be described. At the edges were the most beautiful variations of color possible, in a luminescent, pearly field.
These and other experiences showed me what a rainbow is like in its smallest components. They also showed me that there is no end to the number of variations, which depend on neighborly love and the resulting faith in an individual who sees them represented. That individual in turn looks like a rainbow to others when presented to their view in all her or his beauty and glory.
In addition to these wonders of paradise, one also sees cities full of splendid mansions, one after another, gleaming with color, beyond the skill of any architect to create. Not surprisingly, cities like them appeared to the prophets as well, when their inner eyes were open; and these cities were as plain to see as any that could exist in the world. The New Jerusalem appeared to John, for instance, and he described it in these words:
He took me away in spirit onto a mountain big and high and showed me the great city, Jerusalem the Holy, having a wall big and high, having twelve gates. The structure of the wall was jasper, and the city was pure gold, like golden glass. The foundations of the wall were adorned with every precious stone. The first foundation was jasper, the second sapphire, the third chalcedony, the fourth emerald, the fifth sardonyx, the sixth sard, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth chrysoprase, the eleventh hyacinth, the twelfth amethyst. (Revelation 21:10, 12, 18, 19, 20)
The prophets also describe the new Jerusalem.
Sights like these in countless numbers appear to angels and angelic spirits in broad daylight, and surprising to say, the angels and spirits perceive them with all their senses. This will never be believed by anyone who has blotted out all spiritual thinking by means of the terms and definitions used in human philosophy and by argumentation—yet it is absolutely true. The fact that the saints saw them so many times could have convinced such people that it is true.
from Secrets of Heaven, Volume 2, Sections 1625, 1626