But it would be better to present some experiential evidence at this point. Whenever I have talked with angels face to face, I have been with them in their houses. Their houses were just like the houses on earth that we call homes, but more beautiful. They have chambers, suites, and bedrooms in abundance, and courtyards with gardens, flower beds, and lawns around them. Where there is some concentration of people, the houses are adjoining, one near another, arranged in the form of a city with streets and lanes and public squares, just like the ones we see in cities on our earth. I have been allowed to stroll along them and look around wherever I wished, at times entering people’s homes. This has happened when I was fully awake, with my inner sight opened.
I have seen palaces in heaven that were so splendid as to be beyond description. Their upper stories shone as though they were made of pure gold, and their lower ones as though they were made of precious gems. Each palace seemed more splendid than the last. It was the same inside. The rooms were graced with such lovely adornments that neither words nor the arts and sciences are adequate to describe them. On the side that faced south there were parklands where everything sparkled in the same way, here and there the leaves like silver and the fruits like gold, with the flowers in their beds making virtual rainbows with their colors. On the horizon of sight there were other palaces that framed the scene. The architecture of heaven is like this, so that you might call it the very essence of the art—and small wonder, since the art itself does come to us from heaven.
Angels tell me that things like this and countless others even more perfect are presented to their view by the Lord; but that such sights actually delight their minds more than their eyes because they see correspondences in the details, and through their correspondences they see things divine.
from Heaven and Hell, Sections 184, 185