Impiety is a perceived lack of proper respect for something considered sacred. Impiety is often closely associated with sacrilege, though it is not necessarily a physical action. Impiety cannot be associated with a cult, as it implies a larger belief system was disrespected. One of the Pagan objections to Christianity was that, unlike other mystery religions, early Christians refused to cast a pinch of incense before the images of the gods, an impious act in their eyes. Impiety in ancient civilizations was a civic concern, rather than religious. It was believed that impious actions such as disrespect towards sacred objects or priests could bring down the wrath of the gods. Impiety was often used to prosecute atheists, who were widely discriminated against.