"Taiji Wudang" Episode 7: "The Language of the Stars"

On special occasions, the Taoist priests of Wudang would ascend the highest peak to observe the celestial phenomena. Since the Ming dynasty, this place has served as an imperial Taoist sanctuary. The priests were even able to deduce the rise and fall of the royal family and the fortune or misfortune of the monarch from changes in the stars, which is why emperors regarded astrology as a highly classified matter.