I have been fortunate enough to work with trance mediums, one especially gifted one, in a therapeutic context for several years now. I personally feel we truly know next to nothing about the mechanisms behind trance channeling and mediumship. Like Edison said, "We don't know one millionth of one percent about anything." I do think it's far more likely to be an integrative both/and rather than either/or pheonomenon with respect to subconscious production vs spirit speakers (to say nothing of tapping the collective unconscious) and that's about all I feel reasonably sure of. Quantum (Unified Field)theories/New Paradigm Science and the like holds promise as far as cracking the code on the the entire spectrum of super-normal phenomena. The study here sounds rudimentary. I would suggest interested readers see the research being done at Windbridge Institue, the Rhine Research Center, and IONS.
Contrary to what the uninitiated might think, the meaning of divination cards changes over time, shaped by each era’s culture and the needs of individual users. This is partly why these decks can be so puzzling to outsiders, as most of them reference allegories or events familiar to people many centuries ago. Caitlín Matthews, who teaches courses on cartomancy, or divination with cards, says that before the 18th century, the imagery on these cards was accessible to a much broader population. But in contrast to these historic decks, Matthews finds most modern decks harder to engage with.
Four, some psychic mediums get feelings or sensations in their body and mind, both physical and emotional. A spirit can make the psychic medium feel sad if they are trying to convey the message of depression. Or they can make the psychic medium’s lungs feel tight if they are trying to convey the message that someone had pneumonia or lung cancer. It is not uncommon that a psychic medium will feel a painful sensation in the head if the spirit is trying to relay the message that there was a head trauma that caused death. This could be due to an auto accident or suicide (or any number of causes), so the spirit will also send another message—perhaps a telepathic picture of a smashed car—to complete the story for the psychic medium.
Though historians like Kaplan and Matthews publish new information on divination decks every year, there are still many holes in the larger story of fortune-telling cards. Wolf points out that those who use cards for divination are often at odds with academics researching their past. “There’s a lot of friction between tarot historians and card readers about the origins and purpose of tarot cards,” Wolf says. “The evidence suggests they were invented for gaming and evolved for use in divination at a much later date. Personally, I believe they were designed for game play, but that the design is a bit more sophisticated than many tarot historians seem to believe.”
In 1958, the English-born Spiritualist C. Dorreen Phillips wrote of her experiences with a medium at Camp Chesterfield, Indiana: "In Rev. James Laughton's séances there are many Indians. They are very noisy and appear to have great power. [...] The little guides, or doorkeepers, are usually Indian boys and girls [who act] as messengers who help to locate the spirit friends who wish to speak with you."
Colin Fry was exposed in 1992 when during a séance the lights were unexpectedly turned on and he was seen holding a spirit trumpet in the air, which the audience had been led to believe was being levitated by spiritual energy. In 1997, Massimo Polidoro and Luigi Garlaschelli produced wax-moulds directly from one's hand which were exactly the same copies as Gustav Geley obtained from Franek Kluski, which are kept at the Institute Metapsychique International.