Four times to the Yulin Grottoes are from Guazhou, through a next door, gradually there are oasis and water flowing, through the broken city and Suoyang town, and then through the mushroom platform, Yulin Grottoes are not far away. The Yulin Grottoes were built on the cliffs on both sides of the Yulin River. Because of the name of the river, it is also called Wanfo Gorge. Mogao Grottoes are commonly known as Qianfo Caves, and the Yulin Grottoes are also called sister caves. The age of the opening of the Yulin Grottoes is no longer considered. Some caves are indeed very old and may be pushed to the Northern Wei. Then the existing statues and murals have no north dynasty figure, most of them are works after Tang Dynasty, and have been rebuilt and repainted through different eras such as the five generations, Song Dynasty, Xixia and Qing Dynasty. The existing caves are 43 caves, painted Buddhas, Tao map 10856 shops, painted Buddhas, Tao statues 244. Among the caves, Tang 3 Grottoes, Wudai 8 Grottoes, Song 13 Grottoes, Xixia, Yuan each 4 Grottoes, Qing 9 Grottoes. Yu and his friends went to Yulin Grottoes four times, walked into the world of Mandala in the 3 Grottoes, looked up at Wenshu Puxian change, and saw mysterious secret murals in the 4 Grottoes. Watching the cold and dark water in the 2 caves, the moon and the moon were excited, and the tears were full before the 25 caves changed, like drinking the sweet spring water in the desert oasis together. The Yulin Grottoes are like spring water, refreshing, although they have been far away, they still have a fragrant mouth. Total of 12 caves in the remaining four visits: 2, 3, 4, 5, 11, 12, 13, 14, 16, 17, 25, 26