Quetzalcoatl is a deity in Aztec culture and literature. Among the Aztecs, it was related to wind, Venus, Sun, merchants, arts, crafts, knowledge, and learning. It was also the patron god of the Aztec priesthood. It was one of several important gods in the Aztec pantheon, along with the gods Tlaloc, Tezcatlipoca and Huitzilopochtli. Two other gods represented by the planet Venus are Tlaloc (ally and the god of rain) and Xolotl (psychopomp and its twin).