The Mexica made reference to at least two manifestations of the supernatural: teotl and teixiptla. Teotl, which the Spaniards and European scholars routinely mistranslated as god or demon, referred rather to an impersonal force that permeated the world. Teixiptla, by contrast, denoted the physical representations (idols, statues and figurines) of the t??tl as well as the human cultic activity surrounding this physical representation. The Mexica gods themselves had no existence as distinct entities apart from these t?ixiptla representations of teotl (Boone 1989).
Veneration of Huitzilopochtli, the personification of the sun and of war, was central to the religious, social and political practices of the Mexicas. Huitzilopochtli attained this central position after the founding of Tenochtitlan and the formation of the Mexica city-state society in the 14th century. Prior to this, Huitzilopochtli was associated primarily with hunting, presumably one of the important subsistence activities of the itinerant bands that would eventually become the Mexica.
Human sacrifice as shown in the Codex Magliabechiano.
According to myth, Huitzilopochtli directed the wanderers to found a city on the site where they would see an eagle devouring a snake perched on a fruit-bearing nopal cactus. (It was said that Huitzilopochtli killed his nephew, Copil, and threw his heart on the lake. Huitzilopochtli honoured Copil by causing a cactus to grow over Copil’s heart.) Legend has it that this is the site on which the Mexicas built their capital city of Tenochtitlan. This legendary vision is pictured on the Coat of Arms of Mexico.
According to their own history, when the Mexicas arrived in the Anahuac valley (Valley of Mexico) around Lake Texcoco, the groups living there considered them uncivilized. The Mexicas borrowed much of their culture from the ancient Toltec whom they seem to have at least partially confused with the more ancient civilization of Teotihuacan. To the Mexicas, the Toltecs were the originators of all culture; “Toltecay?tl” was a synonym for culture. Mexica legends identify the Toltecs and the cult of Quetzalcoatl with the mythical city of Tollan, which they also identified with the more ancient Teotihuacan.
For most people today, and for the European Catholics who first met the Aztecs, human sacrifice was the most striking feature of Aztec civilization. While human sacrifice was practiced throughout Mesoamerica, the Aztecs, if their own accounts are to be believed, brought this practice to an unprecedented level. For example, for the reconsecration of Great Pyramid of Tenochtitlan in 1487, the Aztecs reported that they sacrificed 84,400 prisoners over the course of four days, reportedly by Ahuitzotl, the Great Speaker himself.
However, most experts consider these numbers to be overstated. For example, the sheer logistics associated with sacrificing 84,000 victims would be overwhelming, 2,000 being a more likely figure. A similar consensus has developed on reports of cannibalism among the Aztecs.
In the writings of Bernardino de Sahagún, Aztec “anonymous informants” defended the practice of human sacrifice by asserting that it was not very different from the European way of waging warfare: Europeans killed the warriors in battle, Aztecs killed the warriors after the battle.
Accounts by the Tlaxcaltecas, the primary enemy of the Aztecs at the time of the Spanish Conquest, show that at least some of them considered it an honor to be sacrificed. In one legend, the warrior Tlahuicole was freed by the Aztecs but eventually returned of his own volition to die in ritual sacrifice. Tlaxcala also practiced the human sacrifice of captured Aztec warriors.