The Biography of Luoyang Galand is a masterpiece that integrates history, geography, Buddhism and literature (Sikuquanshu classifies it as geography), also known as the Biography of Galand, which was written by Yang Xuan in the Northern Wei Dynasty and was written in the era of Emperor Xiaojing in the Eastern Wei Dynasty. The book lists the Buddhist temples in Luoyang in the Northern Wei Dynasty, which are divided into five volumes: Inner City, Dongcheng, Xicheng, Nancheng and Beicheng. It records the origin and changes of temples, the scale of temple system, and related anecdotes and anecdotes of celebrities. Together with Li Daoyuan's Notes on Water Classics, it has always been regarded as a double gem of Northern Dynasties literature. According to the book, the author was invited by an official in Yong 'an of Wei Xiao Zhuang (528-529) to see Luoyang in its heyday. After two years, Emperor Xiaojing was in Wuding for five years (547). He revisited Luoyang because of his service, and saw that its "battlements collapsed, palaces overturned, temples vanished, temples were covered with mugwort, and alleys were covered with thorns", and even the bells were rarely heard. Looking back, it is inevitable that there will be sadness in Mai Xiu, so write it out and pass it on to future generations.