What is an exorsism?

Exorcism is an event that in which an evil demon will take over your body and make you say things in the demons voice. While having exorcism, the demon could choke, insult, or even kill you. It is very, very rare to get exorcism, but it doesn't mean you will get it. A famous person who had this exocism, had bad exorcism. Her name was Emily Rose. To get deeper inside exorcism, google or YouTube it!