Firstly, the CIA had psychic spies that could remotely view locations which is well documented. The most successful CIA remote viewer Joseph McMoneagle also has a bunch of interviews on youtube. I point out remote viewing to disprove the atheists that claim that only physical matter exists.
https://www.youtube.com/watch?v=-WUaS_Ynd_M (Documentary on CIA Remote Viewing)
Robert Monroe also worked for the CIA and could astral project, which he called an OBE (Out of Body Experience). He founded the Monroe Institute where he trained CIA agents on how to induce OBE's consistently. He wrote 3 books and in his second book he explained how this world is a spiritual farm designed to generate as much suffering energy as possible which he called loosh.
https://www.youtube.com/watch?v=J96E6X_tsIY (Loosh farm chapter in second book)
The main proof of the loosh farm is in NDE's (Near Death Experiences). Tens of thousands of people have shared these stories online which almost always follow the same outline (which proves they're real and not just random hallucinations. These people go into a white light which gives off a feeling of love/ecstasy, meet dead relatives, Jesus, spirit guides, then they're given a life review and guilt tripped to come back to earth. They are also told that the meaning of life is to learn lessons, or to love each other, or some other generic reason. It seems like these people are just getting duped into coming here to suffer more. Some people also see what's taking place in the hospital (or wherever they died) and overhear conversations while they're still clinically dead, which they then confirm with people once they're revived.
The loosh farm theory is that once you die you get tricked into going into the light (or enter the light out of ignorance being lured in by the love/ecstasy feeling), then you'll meet entities who pretend to be your dead relatives, spirit guides, or religious figures like Jesus (sometimes people meet these entities before going into the light). You're then given a life review and guilt tripped with all of the mistakes you've made, then you're told that you need reincarnate to fix these mistakes (sometimes it's to fix your "karmic dept", sometimes they claim you haven't learned your soul lessons, the excuse is tailored to the individual). You are then memory wiped and reincarnated. This theory is assuming that a full death experience is the same as an NDE. Considering that a lot of NDE's take place while these people are declared clinically dead makes it's a safe assumption that a full death experience will be the same or similar experience (full death meaning you don't get revived and stay dead).
Here's a youtube channel that goes into the loosh farm/prison planet theory. He does commentary on countless NDE accounts and points out how the person is being deceived/manipulated. You can also just watch NDE accounts without commentary and connect the same dots yourself.
https://www.youtube.com/@ForeverConsciousResearch/search?query=nde
Other loosh farm/prison planet youtubers:
https://www.youtube.com/@overwatchproject
https://www.youtube.com/@SovereignSpirits
NDE story channels without commentary:
https://www.youtube.com/@ndediary
https://www.youtube.com/@TheOtherSideNDEYT
Website with thousands of written NDE stories:
https://nderf.org