"Satanism"
“MEN do not live long without gods; but when the gods of the New Paganism come they will not be merely insufficient, as were the gods of Greece, nor merely false; they will be evil. One might put it in a sentence, and say that the New Paganism, foolishly expecting satisfaction, will fall, before it knows where it is, into Satanism”
~Hilaire Belloc: Essays of a Catholic.