Scuse me for being nosy, but, why?
Many reasons, but at this point mainly because I have an interest in Machik's teachings – and I think it is then pertinent to mull over what the terms demons and demonic denotate. Furthermore, as an absolute beginner I find it intriguing that there is not consensus among some senior Western practitioners as to whether demons are conventionally real, i.e. 'real' entities, or not.
This is because those that negate the conventional existence of the genii locorum in general are not understanding how the six realms actually function.
For the most part, the experiential realm of gods and demons is the same as ours, but it is cognitively closed to most human beings.
Those people who negate the existence of such non-human beings completely are like ants on a leaf arguing about whether humans exist or not.