With Prometheus and Proteus in mind, we can draw a conclusion that The Lighthouse may be seeking to use these mythical Greek characters to tell a story through a new lens. Prometheus is Titan who is remembered for being a trickster who would steal fire from the gods and give it to humanity. After his misdeeds, Zeus chained him to a rock and sent an eagle to eat his liver, which would grow back overnight for the same torture to resume the next day. And Proteus is the sea god. In The Lighthouse’s case, Willem Dafoe’s character would be the god and Pattinson holds the role of Prometheus. Once he steals the fire (energy source of the lighthouse), a similar fate to Prometheus befalls on him. The image is unmistakable:
