I just saw What Dreams May Come, the movie version of his metaphysical book. But the book is different from the film.
Suicides also go there.
In time, souls are retrieved from this undesirable place. In my early days of conducting individual past-life regressions, I often moved my subjects through the past life by years. On the count of three you'll be there. Occasionally, my subject would begin to tremble and tell me that they were in a cold, dark and nightmarish place. By moving them back in time, I found they had died and crossed over into spirit.