There are some religions which believe anyone with a mental illness is possessed. Vis the news reports of people who have killed children by putting a hose down their throat to flush out the demon...happened a couple of years ago..read it. A strange religious cult but a common one.

However demons do not exist, except in the currency of theology and religion. They are simply energy levels.

But I do acknowledge each persons right to believe what they will.

Then again there are religions such as scientology which do not believe in depression at all...it does not exist...yeh right...