The chief god in the Aztec pantheon is Huitzilopochtli, the god of war and the sun. He was revered as the protector of the Aztecs and was integral to their cosmology. His narratives often emphasize themes of sacrifice, creating a connection between the gods and the human world. Huitzilopochtli's influence is evident in Aztec cultural practices, emphasizing the significance of warfare and strength in their society.