Xolotl  In Aztec mythology, Xolotl () was a god associated with both lightning and death. He was also associated with the sunset and would guard the Sun as it traveled through the underworld every night. Dogs were associated with Xolotl. This deity and a dog were believed to lead the soul on its journey to the underworld. He was commonly depicted as a monstrous dog. Xolotl was the god of fire and lightning. He was also god of twins, monsters, misfortune, sickness, and deformities. Xolotl is the canine brother and twin of Quetzalcoatl, the pair being sons of the virgin Coatlicue. He is the dark personification of Venus, the evening star, and was associated with heavenly fire. Xolotl was the sinister god of monstrosities who wears the spirally-twisted wind jewel and the ear ornaments of Quetzalcoatl. His job was to protect the sun from the dangers of the underworld. As a double of Quetzalcoatl, he carries his conch-like ehecailacacozcatl or wind jewel. Xolotl accompanied Quetzalcoatl to Mictlan, the land of the dead, or the underworld, to retrieve the bones from those who inhabited the previous world (Nahui Atl) to create new life for the present world, Nahui Ollin, the sun of movement. In a sense, this re-creation of life is reenacted every night when Xolotl guides the sun through the underworld. In the tonalpohualli, Xolotl rules over day Ollin (movement) and over trecena 1-Cozcacuauhtli (vulture). His empty eye sockets are explained in the legend of Teotihuacan, in which the gods decided to sacrifice themselves for the newly created sun. Xolotl withdrew from this sacrifice and wept so much his eyes fell out of their sockets. According to the creation recounted in the Florentine Codex , after the Fifth Sun was initially created, it did not move. Ehecatl ("God of Wind") consequently began slaying all other gods to induce the newly created Sun into movement. Xolotl, however, was unwilling to die in order to give movement to the new Sun. Xolotl transformed himself into a young maize plant with two stalks (xolotl), a doubled maguey plant (mexolotl), and an amphibious animal (axolotl).