I suppose this is a tale of how badly a set of extreme beliefs can effect the mind!
I knew of a brother who suffered with mental ill health and often had hallucinations, of the visual variety. After a while during his passage through the truth he began to see strange demons in unusual places. Whilst practising a talk one of the day, he calmly put his book down and moved towards an open window. He then picked a very large pair of scissors out of a drawer and snipped a line running from outside the window which lead to a pole in the middle of his garden. He then calmly walked back to where he was formerly standing and continued his talk (without mentioning the snip!).
Later the same day he told us that while talking he had noticed a gremlin-style demon sitting on the line, sneering through the glass and had snipped the line so it couldn't sit there.
Scary but true !
This same brother later in the year ended up in a police cell after banging on a church door early in the morning, telling Babylon to come on out and face the Christ. Yes, his mind now led him to believe that he was the second coming.
After suffering from mental ill health myself for a number of years, I can understand how extreme belief systems can push you in this direction. Frightening, if slightly amusing from the outside .....