Mount Song
On the edict giving him these offices, she emphasized that he was more impressive than even Lord Guangcheng () of Yellow Emperor's time who claimed to have lived for 1,200 years, and Duke Heshang () of Emperor Wen of Han's time who claimed to have written commentaries for the "Tao Te Ching" for more than 1,700 years. Less than a month later, Wei requested that he be allowed to return to Mount Song. Wu Zetian relieved him of his posts and escorted him back to Mount Song.