Yongzheng years of the Qing dynasty, the emperor indiscriminately kill, Yongzheng's own brother --- eight princes incognito for Peng refuge to horn ditch. A number of years later, the Qing emperor Qianlong driving to Huairou, think here too much feng shui, so listen to the words of the master, hand-planted a pine at the top of the mountain, given the name of 'one good'. Later generations used 'one good' on behalf of the pine tree, meaning longevity