To me a demon/devil is an entity that feeds on the innocent and disenfranchised, destroys the Earth for its own personal gains. Fighting against it's own mortality because it was never meant to survive here. So much so that even the sun that nourishes everything on the planet tries to exterminate it. But like a blood sucking leech, it festers on causing chaos and destruction in the name of it's own survival.
I'm writing a book called 'Wypipo Come from Vampires' y'all should check out...
Demons are real, let's defeat them together...