The part where he mentions that these apparitions occasionally provide some positive benefit but that it later "turns sour"... this is a very important theme in fairy folklore, angelic/demonic folklore, magic... desires can never be completely fulfilled... they can be temporarily met or displaced with another desire. A being might hand out gold nuggets for them later to turn to dirt. Someone might get healed only to have the disease later return or have some other ailment replace it. Delicious looking food might turn out to be leaves and worms.
I used to be into fundamentalist Christianity and would occasionally hear of "outpourings of the spirit" where some preacher would apparently have miracles happening all around them for a while.. healings, prophecy, manifestations, etc... but then it would eventually devolve into something corrupt... people getting "drunk in the spirit" and crawling around laughing hysterically or acting like animals... then there would be something come out about the preacher having sex with some assistant or it turned into a scam. Or sometimes the person wouldn't give into corruption, but the miraculous happenings would fade. Some cynics would say it was always a scam from the beginning, but I believe some of these movements to have a kernel of actual magical power at the center having experienced a few things myself.
There is a dream-like quality to all of this. How many dreams have you had where you get a taste of something you want but it "turns sour" or just slips away from your grasp as you're about to obtain it and you awake with a longing for it and you go back to sleep to try and finish the dream to get the thing you almost had but you just can't every quite get back there?
There is a dream-like quality in the fact that experiencers often suspend their rational mind and accept something completely absurd just as they would in a dream and only realize the absurdity of it later when they try to explain the dream.
There is a dream-like quality in that the thing you observe seems to be independent of you but could just as well be a projection of your subconscious.
UFO sightings seem to be waking shared dreams... manifestations of collective subconscious. This isn't to say they aren't also physical in some way.
Thermodynamic cycles harness heat (energy) and chaos (entropy) to do mechanical work. Your desires are like heat (energy) and your will is like chaos (entropy). You can be harnessed to do work but instead of a heat pump or a Rankine or Otto cycle you are put in some kind of psychic cycle that generates desire within you and then discharges that desire and the work output is some act of creation... some change to the timeline. The dream that gives you a taste of glory before slipping away... the healing that almost but doesn't come... the blessing that turns into a curse...
Maybe Maxwell's Demon is real...
https://en.wikipedia.org/wiki/Maxwell's_demon
