Introduction to Sheshen Platform: Located on the east side of Yunmeng Basin, it is a cliff 80 meters long from north to south and 13 meters high. It is said that when Gui Gu was giving lectures here, in order to test the courage and piety of his disciples, he asked them to jump off the platform, hence the name. The three characters "Sacrifice Platform" on the wall were written by Zhou Zhaoyi, a famous female calligrapher in my country. At its northern end is the "Xianshui Spring", which is crystal clear, sweet and delicious, and is endless all year round.