Introduction to the Three Books: The canyon above the Three Books is called "Studying Forest". It was the place where Liu Bingshi, a Jinshi of the Qing Dynasty, herded cattle and studied since he was a child. After Liu Bingshi was admitted to Jinshi, this place was said to be a place of talents. Later, many scholars came to imitate him. It is said that one night, the scholars had the same dream. They dreamed that an old man with white hair and silver beard came to the scholars with a scroll in his hand and said to the scholars: "Whoever can read these three books in my hand will be the number one scholar." The second place is undoubtedly the best; if you can't read these three books and can't climb the mountain of books in front of you, don't waste your time here and go your separate ways as soon as possible. At this time, a loud noise took the scholars away. I woke up from my dream. Three heavenly books were placed on the Longmen Gate, and a mountain of books stood in front of the scholar.