… The other kind of spirit functions on the astral plane; we can use one traditional term for them, and call them demons, but there are many different kinds and classes and varieties of malign astral being. For reasons of their own, some of these beings seek to draw human beings into various unbalanced and self-destructive patterns of thought and action. They have no real power over us, except to the extent that we give power to them, but they can whisper thoughts into the minds of humans in vulnerable conditions, and if those thoughts are welcomed, more will follow. Each class of demon has its characteristic imbalance, and distorted sexuality is the focus of one such class. Yes, chronic masturbators obsessively watching pornography are in a vulnerable condition to such entities.
The hallmarks of demonic involvement are easy to recognize. First, there is something weirdly mechanical about these entities; people they influence do and say the same things over and over again in rigidly stereotyped patterns, and lose the ability to reflect on their words and actions and notice how bizarrely repetitive they’ve become. Second, there’s an emotional tone to demonic activity that, once recognized, is never forgotten: hot, inflamed, confused, excited, murky. Finally, the actions they inspire in human beings are always self-defeating and self-destructive.
How do you get rid of such beings? ... Religion is one of the two classic options—old-fashioned sacramental religious denominations of every tradition have robust methods of chasing these beings away, though the more watered-down modernist versions of the same traditions are typically as helpless as they are clueless about such things. Magic is the other classic option: daily performance of a banishing ritual such as the Lesser Ritual of the Pentagram or the Sphere of Protection, or the use of other methods of protection and blessing, will typically do the job in short order. Of course you can combine the two.