Although there are several types of exorcism, the one most commonly imagined in popular culture is the solemn or “major” exorcism, a ritual to rid a possessed person of the demon or demons that inhabit their body—not merely a prayer for spiritual healing. Solemn exorcisms can be performed only by Catholic priests, and only then with the express permission of a bishop. Exorcism is not one of the seven Catholic sacraments, but the ritual is sacramental, meaning that the rite’s success is not dependent on the formulaic approach common to Catholic sacraments, but rather the exorcist’s faith and the authorization of a bishop.
In light of the Vatican’s concerns over heightened demonic activity around the world and the apparently urgent need for more exorcist-priests, training courses have been offered to equip the next generation of exorcists with the spiritual knowledge they need to expel demons from their non-consensual hosts. More than 170 priests and laypersons alike gathered in Rome for the most recent course, which was held at the Sacerdos Institute, an organization of priests affiliated with the Pontifical Athenaeum Regina Apostolorum, an educational institute of the Catholic Church. The course, which costs around $330, covers numerous topics, including the theological, liturgical, and canonical aspects of exorcism, as well as its anthropological history, its potential place within the criminal justice system, plus medical and neurological issues surrounding demonic possession.
—Dan Shewan, writing for Pacific Standard about the business of exorcism. The casting out of demons has also become a lucrative cottage industry outside of the Catholic Church, with dozens of self-styled exorcists plying their trade across America, as detailed in Shewan’s piece.