It’s amazing how often the wheel is re-invented in the paranormal, especially when money is to be made. I will refrain from further comment, except to say that the paranormal has become just another “industry” (The Paracast excluded). The “Djinn” have been around a lot longer than Islam or the Celts. In fact, we have to go back at least 6,000 to 8,000 years to the Hindu Vedas, and the Vaishnava tradition, in particular, where they are termed “subtle entities”.
To risk an oversimplification, the “Djinn” are the square root of manifested evil, and cover all kinds of negative entities and energies, as was implied and explained in the show. They do, indeed, attach themselves to humans, often to use human bodies as a proxy to enjoy carnal and other pleasures. They are largely responsible for seemingly unexplained shifts in personal behavior, and for addictions. This may well account for the rise in collective decadence in contemporary society, bevause more and more people are living in Darkness as opposed to living in the Light. To borrow from the Hindu again (but also from C.G. Jung), there is such a thing as “collective karma”. I fear that the US is suffering from this, fueled by the unbridled greed and materialism that has overtaken the nation. But that's another issue.
According to the Vedas, there is a special incarnation of Krishna/Vishnu very helpful in getting rid of these entities aka “Djinn”, or protecting ones self from them: Narasimhadeva, also known as Narasimha. Prayers and mantras offered to Hanuman are also very potent in dispelling and protecting again the “Djinn”. I have recordings of such protective prayers and mantras, which have proved very effective, based on my own experience. If there is an interest, I could offer them free of charge as a download via YouSendIt. Just let me know.
I am not a member of the Krishna Consciousness Movement, but I have good friends there, and they have been a great source of wisdom. Some years ago as an act of "service", I did a series of recorded discussions about key aspects of Vedic teachings, among them, Demons. You'll find all of them at the righthand side of this website under 'Introduction".
Tele Radio Krishna Network
Bob