The “Nopal” cactus is one of Mexico’s symbols, and part of our Mexican flag. The Mexican emblem represents the place where the Mexica Indians founded the city of Tenochtitlan.
The Mexicas, or Aztecs, had been traveling from Aztlan in search of a sign from Huitzilopochli, the god of war, telling them where they should settle and begin their empire. This sign would be an eagle perched on a nopal cactus, devouring a serpent. At long last, the Mexicas found this sign on a small island on the Anahuac Lake, where they settled and began building their realm on the place where present-day Mexico City is located.