Pillán is a mythical creature from the folklore of the indigenous Mapuche people of Chile and Argentina. It is often depicted as a powerful spirit associated with the sea and storms, believed to control the weather and the ocean's waves. The Pillán is considered a guardian of the waters and is sometimes portrayed as a giant or a serpent-like being. In Mapuche culture, the Pillán is also linked to the concept of Pillan, which represents the spiritual essence or energy of the earth. This connection emphasizes the importance of nature and the environment in Mapuche beliefs, highlighting the respect and reverence they hold for natural forces.