In 1424, an emperor personally composed a Daoist melody for Wudang Mountain, the only musical piece he ever created in his lifetime. The elegant and refined composition expressed gratitude and devotion to the mountain’s presiding deity, the Mysterious Warrior God. Over six hundred years, this sacred mountain, which carried the spiritual aspirations of Emperor Zhu Di and his successors, stood alongside Beijing’s Forbidden City, the symbol of the empire’s supreme power, as the most mysterious and sacred places in the nation. In the radiant light of history, Wudang and the Forbidden City bore the empire’s dream of great harmony.