Religious Glossary - common terms used related to Religion
Satanism - Historically, the Catholic Church used
to label every practice which smacked of magic as Satanism
or Black Magic. Unfortunately, a number of bona fide "white"
magicians such as Raymond Lull and Nicholas Flamel were caught
by this hysteria. However it now seems that there might have
been actual Satanic practices going on, centering around the
infamous "Black Mass", in which lapsed Catholics poured hatred
on their former faith. (JWMT)
Satanism is a religious, semi-religious and/or philosophical
movement whose adherents recognize Satan, either as an archetype,
literal being, pre-cosmic force, or anything inbetween. Some
Satanists celebrate aspects of human nature represented by
the usually Christian or literary (Milton, Goethe) Satan archetype.
Many Satanists do not worship a deity called Satan or any
other deity. (wikipedia)