The play Prometheus Bound by Aeschylus depicts Prometheus nailed to a rock as punishment from Zeus for giving fire (representing reason and practical knowledge) to humanity. While being tortured, Prometheus encounters Io, the chorus, and Hermes. References to Zeus and the characters' dialogues suggest whether Aeschylus supports Prometheus' championing of humanity or Zeus' authority as tyrant. The play also describes images of animal domestication and fire.