What Is an Exorcism?

In ancient egyptian ideas about demons, they break them down into two different categories: guardians and wanderers. In west africa, the hausa and magazoa people have a word for those who are possessed. And interestingly enough, they use it in two situations, when some one appears to be possessed by a demon and when someone is accused of witchcraft. But no matter what they called it or how they tried to explain the odd behavior, cultures everywhere have demonstrated a belief that something supernatural is going on behind the scenes.