They are evil and serve Satan. They receive a spiritual euphoria from demons when they do evil and hold their rituals. They are given money and power in the world by their satanic peers. Some are demonic vessels - demons do not die when their host dies but can live across generations - they only become disembodied when they have no host. They seek the destruction of Christianity and the United States is the last powerful country with a strong Christian following.
"Your enemy the devil prowls around like a roaring lion looking for someone to devour."