The Spirit of Countess Paula and the Aerial Dwellings
Many people use the case of this Spirit, Countess Paula, presented in Heaven and Hell, to support their theories of “astral cities”.
What are your palaces and your golden halls before the aerial abodes, the vast field of space variegated with colors that would make the rainbow pale? What are your step-by-step walks in the parks, compared to journeys through the immensity, faster than lightning? What are your limited and cloud-laden horizons, given the grand spectacle of the worlds moving in the limitless universe, under the powerful hand of the Almighty?
How are your most melodious concerts sad and noisy, in the face of this harmony that makes the fluids of the ether and all the fibers of the soul vibrate? How sad and insipid your great joys are compared to the ineffable sensation of happiness that incessantly saturates our being in the form of a beneficent effluvium, without any mixture of restlessness, any worry, any suffering! Here everything breathes love and trust and sincerity. Everywhere loving hearts, everywhere we see friends, no envious and jealous. This is the world I find myself in, my friend, and you will all reach it infallibly by following the right path.
Unfortunately, many stop reading the points that interest them. When the Spirit speaks of “aerial dwellings”, that’s enough to say that she was speaking of spiritual cities! What point do biases adopted in a hurry lead to…
Right after the quote about “aerial addresses”, he continues:
[…] the vast space field tinted with colors that would make the rainbow pale? What are your step-by-step walks in the parks, in front of Travels through the immensity, faster than lightning? What are your limited and cloud-laden horizons, compared to the grand spectacle of worlds moving in the limitless universe, under the mighty hand of the Most High?
These Spirits are talking about Space! He is not talking about astral cities, but about the Space! “Aerial addresses” is a figurative language to say about Space, “above” us!
She continues:
However, uniform happiness would soon become boring. Do not think that our happiness is free from vicissitudes. This is not a perpetual concert, nor an endless party, nor of beatific contemplation through eternity. No. It is movement, life, activity. The occupations, although free from fatigue, present an incessant variety of aspects and emotions, due to the thousand incidents that contain them. Each one has their mission to fulfill, their protégés to assist, friends from Earth to visit, Nature's processes to direct, suffering souls to console. There is a back and forth, not from one street to another, but from one world to another. Creatures come together, separate to come together again; they meet here and there, they talk about what they do, they congratulate each other on their successes; They understand each other and assist each other in difficult cases. Anyway, I assure you that no one has a second of time to get bored.
What exists “on the other side”, for detached Spirits, is action in divine creation! It is the transit through infinite Space, where they come together, here and there, with other Spirits, to act in the processes of Nature, to console suffering souls, incarnate and disembodied! That's it, and not a life limited by walls and false physiological needs!
Check out a more complete approach in the article Umbral and the doctrinal basis.