In Reality Denied, John Alexander details things that can't happen (Bigfoot, Poltergeists, UFO, Mediums, Near Death Experiences, Premonitions) but did/do, including an instance where his wife Victoria was possessed by an entity during a shamanic ceremony in Brazil.

Victoria told me about other experiences she has had on their shared journeys, including meeting John of God and a monk who guards the Ark of the Covenant. Smithsonian. [A very rare encounter.]

John and Victoria have traveled the world, meeting Shamans in different cultures. They are familiar with the Ayahuasca Shamans in South America. Following up with their recommendation for Gringo Shaman Ron Wheelock. I interviewed him.

Wheelock is the one they recommend. To arrange a session/retreat with Ron, contact Victoria. She counsels how to prepare and what to expect. victoria.alexander.lv @gmail.com

John Alexander Website: http://www.johnbalexander.com/home