Well we're reading the Gospel of Mark in my humanities class and the professor called out demon possession, which appears to be especially prevalent in the book of Mark, but not so much in today's world.
Is demon possession actually the way we think of it, like an evil spirit totally taking control of someone and causing them to do crazy things? There are some threads on the forums that express that demon possession is distinct from a mental illness. So then what is it and why was it apparently so prevalent in Jesus' time but not anymore? Has anyone seen someone who was demon possessed?