As has been mentioned, those who have sold themselves to evil, and to do and serve evil, have these beings that no longer are connected to life, using their knowledge of emotions, anatomy and allot more to loosh that life force out in every conceivable way, and to addict their miscreant slave cattle (no matter how powerful they may be in public) they can bump up effects. Explains uncle Joes behaviour a bit in public, he is close to being fully possessed, and thence out of control. Apparently the cia and their sd mates explored a lot of this, aquino joined in, bush snr, list goes on, hellary.
And they are just puppets to the fallen who use it , harvested life force, as currency in hell, has to be. Scripture says don’t do it. Yes tats are a mixture of drug, sex, gang and occultism with demons thrown in for free. Long history and most heavily tatted warriors tended to go into blood lust fairly easy, apparently.
There is much more to it all, the human history of it all is incomplete if you don’t understand why the fallen crave and control fore it, the blood has the Life force in it.