Tlalocan is the fourth level of the "upper worlds", or 'heavens', according to the mythic cosmographies of the Nahuatl-speaking peoples of pre-Columbian central Mexico, noted particularly in Conquest-era accounts of Aztec mythology. To the Aztec there were thirteen levels of the Upper Worlds, and nine of the Underworld; in the conception of the Afterlife the manner of a person's death determined which of these layers would be their destination after dying.
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