In Aztec mythology, the sun plays a central role as a symbol of life, warmth, and sustenance. The sun god, Huitzilopochtli, is associated with warfare and is believed to require human sacrifices to maintain its strength and ensure the continuation of light and life. The sun represents not only physical light but also spiritual guidance and cultural identity for the Aztecs, shaping their rituals and worldview. It embodies themes of life, death, and rebirth, crucial to their understanding of the universe.