Introduction to the Imperial Master's Bed: On the left side of the Moon Cave, there is a huge rock as flat as a bed. It is said that Liu Bowen sat here every day to read and memorize books, and practiced writing on the rock with his fingers. When he was tired, he would lie on his back on the bed. On the rock, while observing the waterfalls and silver springs, he recited poems and composed poems. Over time, the surface of the rock became smooth and flat, like a stone bed. Later generations called it the "Guoshi Bed".