Music and dance troupes preserve the ancient Aztec religion in a Roman Catholic country Keywords: Mexican dance, ancient Aztec Religion, Roman Catholicism, Mexican Christianity, danzantes aztecas, Mexico City, Nahuatl, heuheutl, Aztec rituals, Aztec musical instruments, Aztec culture, shamans, Grupo Huittzilopochtli, Aztec Eagle Knights, Tonantzin, Our Lady of Guadalupe, Santeria, Mexican spirituality, Mexican religion, syncretism, Jenoma study of world DNA, Juan Diego, Pope John Paul II, Victoria Gaitskell, Toronto Star