Exorcism
In Catholic practice the person performing the exorcism, known as an exorcist, is an ordained priest. The exorcist recites prayers according to the rubrics of the rite, and may make use of religious materials such as icons and sacramentals. The exorcist invokes God—specifically the Name of Jesus—as well as members of the Church Triumphant and the Archangel Michael to intervene with the exorcism. According to Catholic understanding, several weekly exorcisms over many years are sometimes required to expel a deeply entrenched demon.
The Exorcism of Emily Rose
During the trial, Emily's past is told through flashbacks and the evidence provided by witnesses. Presiding over the trial is Judge Brewster, with Ethan Thomas, a practicing Methodist, serving as prosecutor. The prosecution claims Emily suffered from epilepsy and psychosis to explain her behavior. Emily received a scholarship to study for a bachelor's degree but displayed signs of demonic possession after she began attending classes, experiencing visions and physical contortions. Diagnosed with epilepsy, Emily received anti-seizure medication but the treatment failed to cure her. A friend named Jason took Emily back home to her family, where she continued displaying traits of possession until Moore was summoned to attempt an exorcism.