Satanism is a word which has been used over the years to describe a number of different belief systems in a number of contexts. People claiming to be Satanists—or outsiders claiming to describe Satanism—ascribe a wide variety of beliefs to this movement. These range from the literal worship of a malevolent spiritual being (Theistic Satanism); to a kind of subversive ritual performance stressing the mockery of Christian symbols (most notably the Black Mass); to the claimed rediscovery of an ancient but misunderstood religion (e.g.