 In the Aztec calendar, the ruler of the day, Itzcuintli ("Dog"), is Mictlantecuhtli, the god of death and lord of Mictlan, the afterlife.Xolotl is sometimes depicted carrying a torch in the surviving Maya codices, which reference the Maya tradition that the dog brought fire to mankind.In the Mayan codices, the dog is conspicuously associated with the god of death, storm, and lightning.