Yes it does,they channel demons.Its how and why they become successful and operate with impunity, arrogance.If you attempt to remove the spiritual aspect from your investigation you will end up with more questions then answers.Its not needed for YOU to believe that ritualistic sacrifice gives them a bond with demonic forces, THEY believe it. And many that try to use only scientific,sterile research methods or are agnostic will never have a satifactory answer as to "why" its done.You got this bro,great comment.