Long relegated to the realm of epilepsy and mental illness, possession has gone through several periods of ascendency and decline. Indeed, in the nineteenth century it looked as though exorcism, in Catholicism, might have been on the endangered species list. Science was calling the reality of the spiritual world into question and nobody likes to be thought naive. With few exceptions, the move toward eliminating the role of the exorcist was gaining steam. Then in the twentieth century the demand for exorcism revived. As Young notes, a large part of the increasing interest arose from the novel and subsequent movie, The Exorcist. Possession was something so little talked about for so many years that it proved a rich ground for a new kind of monster that was eminently believable. The church, after all, never said there weren’t demons. Since that time, interest has been waxing once again.
Part of the reason would seem to be that humans are meaning-seeking creatures. When our main sources of authority in that realm are eroded, we start looking elsewhere to find succor. Ironically, outside Catholicism the mainstay of exorcism has been among various evangelical Protestant groups. They may not have an ancient ritual to use, but what they lack in experience they make up for in enthusiasm. Their demons are culled from a literal reading of the Bible. And interest among Catholics, in this strange supply and demand rubric, has meant that more exorcists are being trained and made available. The world that Young leads his readers through is one in which strange things reside. He makes no judgment about demons or their reality. He does, however, provide a very thorough history of what the Catholic Church has done about them, when the demand exceeds supply.