Introduction to Demu Temple ruins: Demu Temple is an important cultural symbol in the history of Tibet, and the name Lulang is also closely related to it. The Fourth Living Buddha Demu and the Fifth Dalai Lama came to Beijing. When the Fifth Dalai Lama passed by this place, this geomantic treasure land was spotted by his discerning eye. Demu Temple, which belongs to the Gelug Sect of Tibetan Buddhism, relies on its geographical advantage of being located in Gongbu and Bomi and even connected to the vast Kham area in Qamdo and other places, coupled with the reputation and strength accumulated from operating here for several generations, it has naturally become the fifth generation temple. The Dalai Lama is extremely dependent on him both religiously and politically. From the ruins of Demu Temple in Lulang to the current Demu Temple in Mirui Township, an ancient tea-horse road that travels through history is hidden in the forest. This is an ancient caravan road that is about 25 kilometers long over mountains and ridges. The rugged mountain road passes through the vast forest, and the faint ringing of caravan bells that have been here for hundreds of years can be heard in the wind. No matter how beautiful the scenery on both sides is, just riding on horseback and feeling the bumps of the years is enough to make people forget their worries and wander into the world. The Demu Temple in Mirui Township was moved and rebuilt after the original Lulang Demu Temple was burned down. The rebuilt Demu Temple was completely destroyed by the 8.4-magnitude earthquake in Nyingchi area in 1950. It was not until 1952 that the Kashag government finally agreed to the tenth Living Buddha Demu went to repair Demu Temple. The restoration work has been passed down from father to son. In the 1990s, Demo Wangjiu Dorje, the son of the 10th Living Buddha Tenzin Gyatso, reinitiated the construction and finally repaired the main hall in 1994. From the first to the tenth life, from father to son, from 1374 to 2009, from Lulang to Miri, the two Demu temples are separated by this century-old road, watching each other and experiencing vicissitudes of life together.