Theistic Satanism (also known as traditional Satanism, Spiritual Satanism or Devil worship) is a form of Satanism with the primary belief that Satan is an actual deity or force to revere or worship.atanism is now allowed in the Royal Navy of the British Armed Forces, despite opposition from Christians, and in 2005, the Supreme Court of the United States debated over protecting the religious rights of prison inmates after a lawsuit challenging the issue was filed to them.