I agree with @skyrunner7 when it comes to ghosts and jinns. The media capitalizes off this belief that there are supernatural beings that live among us. Most of these exorcist movies and real life ghost hunter people are all frauds. I don’t really know how often Jinns interact with our world in a way that is obvious to human beings. I was taught in my Islamic school that Jinns eat bones and live in dark and dirty places. I guess if they are made of fire, they don’t have to be afraid of germs because the heat will just sterilize everything. That was a joke. skyrunner7 also made a good point that this is a major distinction of the Abrahamic religions. I know that in Christianity, there isn’t a clear belief of what angels are or where they exist. Because they believe the devil is an archangel that fell out of God’s favor, but in Islam that is impossible.
In my psychology class we talked about multiple personality disorder. the medical term is actually dissociative personality disorder. This is when people have multiple personalities (as high up to 100, but it’s usually between 8/9 for men and 15 for women). The diagnosing criteria is different based on the culture that the individual is a part of. In some places for example, people who behave in this way are thought to be possessed by a jinn or a spirit. In the US, no doctor will tell you that you are possessed by a jinn. But in Islam we do believe that it is possible. However, going back to the media and their portrayal of possessions, this whole phenomenon has been really warped. Now it’s so confusing trying to figure out what is a possession, what is a mental illness, and what is just nonsense.