I sat through a zar ceremony in Cairo and I still can't explain the part where she spoke in a man's voice

Okay so the zar isn't really exorcism the way the West does it, that's the first thing. It's an old possession cult, North Africa and the Horn, big in Egypt and Sudan, probably came up the Nile centuries back. The idea isn't to KILL the spirit, the jinn or the 'asyad', the masters, that's riding the……