In Aztec mythology, the god depicted as a feathered serpent is Quetzalcoatl. He represents the duality of nature, embodying both the earth and the sky. Quetzalcoatl is associated with various elements such as wind and rain, which are crucial for agriculture and life. As a cultural hero, he also symbolizes wisdom, creativity, and fertility. His complex character plays a vital role in Aztec creation myths and rituals, influencing the civilization's understanding of life and death.