Level with the soles of the feet, in front and fairly far away, is a hell called Gehenna containing shameless women who centered all their pleasure on committing adultery. They regarded adultery as not just acceptable but honorable and lured the unblemished and innocent into it under various high-minded guises.
A sort of fiery glow appears there, like the one that a large conflagration would cast in the air. There is also a blast of heat, which I was able to feel through the warmth that spread from there to my face. And an odor drifts out that resembles the smell of singed bones and hair.
Sometimes this hell turns into a mass of loathsome snakes that bite the inhabitants. Once bitten they long for death, but they cannot die.
Some women released from the place came to me and said it was hot there. They reported that when they are allowed to approach a certain community of good spirits, the heat turns into intense cold. The temperature, they said, then fluctuates between extremes of blazing heat and freezing cold, which also tormented them miserably.
They have intervals during which they are aroused and aflame with lust; but conditions change for them, as noted.
There were some of each sex from the so-called Christian world who during bodily life considered their adulteries not only allowable but even sacred and for this reason contracted group “marriages” (as they so profanely called them) under the appearance of sanctity.
As I watched, they were sent to Gehenna, but when they arrived there, a change occurred. Gehenna’s fiery glimmer, which is red-hot, became white-hot at their approach, and their inability to get along together became perceptible. As a result, that iniquitous troupe of theirs was removed and transferred to an area behind the back—to another world, I heard, where they would sink into the water and then move on to a new Gehenna created for them.
An indescribable sort of hiss could be heard in [the first] Gehenna, but the hissing or whispering there was duller than the sound made by these people who polluted what is holy with their adulteries.
from Secrets of Heaven, Volume 1, Sections 825-826