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 same family. The Oresteia presents two parallel conflicts, both of