In ancient times, there was a calligrapher who collected Wang Xizhi's words. After decades of collection, he finally integrated a book called What is the Post? Who did this? Please attach his profile ~ Monk Huai Ren in Tang Dynasty

(Monk Huairen, whose birth and death are unknown, lived in Hongfu Temple in Chang 'an during the reign of Emperor Taizong).

Monk Huairen was deeply honored that the emperor could preface Xuanzang, and highly praised Wang Xizhi's calligraphy, so he was willing to combine the calligraphy art of saints with the articles of the emperor. Later, monk Huairen managed to collect and expand the ink of the calligraphy sage Wang Xizhi. It took twenty-four years from the twenty-second year of Emperor Taizong's Zhenguan reign to the third year of Tang Gaozong's Xianheng reign to complete the collection of Wang Xizhi's running script "Preface to the Holy Education", which made "Yi Yuan, salt out in it" become a calligraphy classic. Since then, imitators of Huairen's famous calligraphy collections have appeared constantly.