Hi I’ve read the book and watched the film.

What I took from it is that the devil/ evil wants us to see ourselves as loathsome and unlovable. They were beautiful beings but have made themselves cursed and they want to bring is as low and bestial as possible hence the ugliness and vulgar displays. Also put me iff using any kind if seance/ ouija for life. I haven’t read Legion hit Ive read “ House of Darkness, House of Light” about the Perron haunting.