In Christianity, exorcism involves the practice of casting out one or more demons from a person whom they are believed to have possessed. The person performing the exorcism, known as an exorcist, is often a member of the Christian Church, or an individual thought to be graced with special powers or skills. The exorcist may use prayers and religious material, such as set formulas, gestures, symbols, icons, or amulets. The exorcist often invokes God, Jesus, angels and archangels, and various saints to aid with the exorcism. Christian exorcists most commonly cast out demons in Jesus' name.The concepts of demonic possession and exorcism are found in the Bible and were practiced by the early Christians, especially gaining prominence in the 2nd century.In general, people considered to be possessed are not regarded as evil in themselves, nor wholly responsible for their actions, because possession is considered to be manipulation of an unwilling victim by a demon resulting in harm to self or others. Accordingly, practitioners regard exorcism as more of a cure than a punishment. The mainstream rituals usually take this into account, making sure that there is no violence to the possessed, only that they be tied down if there is potential for violence. However, some believe possession is a voluntary act, where individuals permit demons to subjugate them. Source: Wikipedia (en)