Progression Towards Light Aeschylus' use of darkness and light as a consistent image in the Oresteia depicts a progression from evil to goodness, disorder to order. In the Oresteia, there exists a situation among mortals which has gotten out of control; a cycle of death has arisen in the house of Atreus. There also exists a divine disorder within the story which, as the situation of the mortals, must be brought to resolution: the Furies, an older generation of gods, are in conflict with the younger Olympian gods because they have been refused their ancient right to avenge murders between members of the