The El Tulle Tree is associated with Quetzalcóatl one of the most important gods in ancient Mesoamerica. The god known as the Feathered Serpent is a mix of bird and rattle snake and his name is a combination of the Nahuatl words for the quetzal - the emerald plumed bird - and coatl or serpent. He was also known as Kukulkán to the Maya to the Quiché of Guatemala, and Ehecatl to the Huastecs of the Gulf Coast. He was regarded as the god of winds and rain and as the creator of the world and mankind. In Central Mexico from 1200 CE he was also considered the patron god of priests and merchants and considered the god of learning, science, agriculture, craft  and the arts. He also invented the calendar, was identified with Venus, the rising morning star, he was associated with opossums and even discovered corn (maize) with the help of giant red ant that led him to a mountain packed full of grain and seeds.

Toltec legends tell of Quetzelcoatl of  a white-skinned, bearded priest-king who came from the East to establish an enlightened kingdom among the Indians. Eventually he departed by boat to the West. Quetzelcoatl promised to return, and as the appointed day of his second coming approached, heavenly omens indicated that the Aztec culture was about to come to an abrupt and violent end. The Zapotecs claim Quetzalcoatl buried his heart under the El Tule tree. This tree, at the time of the Harmonic Convergence was ground zero for Quetzalcoatl' s long-awaited return.