My family is going through a difficult time. my mother's cousin has advanced cancer and there is no medical hope, so his family turned to a priest at a church who told them that he sees spirits or demons that are preventing my mother's cousin from being cured. He asked him what it could be, and my mother's cousin told him that when they were children, they used to play with a Ouija board among cousins, to which the priest said that this is why those spirits won't leave him alone. The priest also said that he knows that he has another cousin who sees things, even though my family hadn't told him anything about it. The priest told them that they have to perform an exorcism on all the participants in order to release those energies. The participants talked and remembered that they didn't close the game. How could they close it? Is it necessary for all participants to be present? If anyone has had similar experiences, I want to hear about them. I understand that it may seem like just the priest's inventions, but what gives it credibility is that the priest talked about my uncle seeing paranormal things, specifically a woman who has even spoken to him, and my mother's cousin's family never mentioned anything about it because they didn't know about it themselves, as only the family closest to him knew about it. In addition, there are several people in my family circle who have had paranormal experiences or have seen things that are not even believable.