According to legend, there is a road called Huang Quan Road, a river called Forgetting River, a bridge called Naihe Bridge, an earthen platform called Wangxiangtai across Naihe Bridge, and an old woman selling Meng Po Tang. There is a kind of stone called Sansheng Stone near Forgetting River, which makes you forget everything. Sanshengshi records your past life. We walked across Naihe Bridge and finally took a look at the world on Wangxiangtai. "Meng Po Tang" is an ancient legend in China, which was recorded in an ancient book of Zilan family. In that legend, people repeat it from generation to generation. The end of this life is only the beginning of the next life. People who have experienced life again and again can't have memories of past lives, just because everyone drinks Meng Po Tang on Naihe Bridge before being reborn. Therefore, walking on the Naihe Bridge is the last time a person has memories of this life. At this moment, many people still cling to the unfinished wishes of their previous lives, but deeply understand that these wishes can not be realized after all, so they sigh. This is also the reason why this bridge connecting generations is named Naihe Bridge.