Satanists worship themselves and according to Mark Passio the puppet masters are angry at God because they cannot do whatever they please without consequences. [They] feel like this realm is a prison because of that so in protest they do horrendous things. The thought of Satan is not the same as the devil but it is a belief that oneself is all powerful not God.
They never create anything on their own and steal and corrupt every symbol they use. Also for some reason they feel that if they tell us their evil plans and actions through symbolism it somehow makes them justifiable.