Besides which, the Church has often declared its faith in something which was later discredited when it turned out to be false, e.g. that the Sun moves round the Earth, or that the Earth is flat etc. Subsequent discoveries overturned the significance of those that existed previously. Is it not the case also that in the matter of the exorcisms, the devil and of the possession of people by ghosts that the Church is in error?
Summing up, since the times of Jesus every human being who believed in God could perform exorcisms for themselves and for their nearest and dearest. These exorcists were effectiv and no-one needed to help them do it. Later this was forbidden and people were commanded to turn exclusively to priests. Then they, too, were forbidden to do it. Fear of punishment excised very effectively the knowledge of exorcism from people's memories. Contemporary man turns to exorcist priests for exorcism. They for the most part are unable to help. So, over a period of centuries, people have gone round in a huge circle. Unable to get the exorcism from priests, contemporary man is forced to help himself, just as in Jesus' time, and to use the power that God gives to every believer. Those who are interested in studying this subject should refer to, among others, the works of Father Gabriele Amorth, who is an exorcist in the diocese of Rome and the president of the Association of Exorcists. In his books he writes about people who have come to him and who had unsuccessfully sought help over many years. He asks this question: "And how many are there who will not receive this help?". And he himself gives this reply: "Very many, and that's because there are very few priests who want or know how to do it".
Post 3: From Wanda Pratnicka’s book “Possessed by Ghosts