Introduction to the Yongle Northern Collection: The Ming version of the Buddhist scripture "Yongle Northern Collection" is well preserved, with a total of 678 letters and 6,780 volumes. This Buddhist classic is now a rare edition in China. "Illustrated Records of Zhiti Temple" records that from the Yongle to Wanli years of the Ming Dynasty, the imperial court gave the Tibetan Sutra to Huayan Temple in Zhiti Mountain three times. "Yongle Beizang" is the Ming Dynasty Zhengtong 5th year edition. It is covered with royal brocade (yellow silk) and is a rare domestic book.