Huītzilōpōchtli
Origin stories
Huitzilopochtli is seen as the sun in mythology, while his many male siblings are perceived as the stars and his sister as the moon. In the Aztec worldview, this is the reason why the Sun is constantly chasing the Moon and stars. It is also why it was so important to provide tribute for Huitzilopochtli as sustenance for the Sun. If Huitzilopochtli did not have enough strength to battle his siblings, they would destroy their mother and thus the world.
History
There were 18 especially holy festive days, and only one of them was dedicated to Huitzilopochtli. This celebration day, known as Toxcatl, falls within the fifteenth month of the Mexican calendar. During the festival, captives and slaves were brought forth and slain ceremoniously.
Sacrifice
During the festival of Panquetzaliztli, of which Huitzilopochtli was the patron, sacrificial victims were adorned in the manner of Huitzilopochtli's costume and blue body paint, before their hearts would be sacrificially removed. Representations of Huitzilopochtli called teixiptla were also worshipped, the most significant being the one at the Templo Mayor which was made of dough mixed with sacrificial blood.