According to "Jiangxia County", it is recorded: "The vegetable moss is similar to the Chengdong Baotong Temple. Its taste is especially good, and he is not at all." The legendary vegetable moss in the range of the bells of the Baotong Temple is purple and oily. Therefore, there is a saying that "the shadow of the tower is reflected in the purple." At the end of the Qing Dynasty, the Empress Dowager Cixi gave a tribute to Beijing, and was named "Golden Royal Palace".