Oceanus is a Titan in Greek mythology, often depicted as the personification of the ocean. He is considered the father of all rivers and the source of all bodies of water. Oceanus is usually portrayed as a giant, flowing figure encircled by a serpent, symbolizing the vastness and continuity of the sea. In ancient texts, Oceanus is described as a gentle and nurturing deity, contrasting with other more chaotic sea gods like Poseidon. He is often associated with the idea of the ocean as a boundary, separating the known world from the unknown, and was revered by ancient Greeks for his role in the natural order.