According to documents, in the era of Wang Xizhi in the Eastern Jin Dynasty, there was a phenomenon of calligraphy counterfeiting for profit, but this trend should have flourished after Liu and Song Dynasties. In the book "On the Desk" in the sixth year of Emperor Taishigong of the Song and Ming Dynasties, he said: "The new Chongqing Huihou loves it, and it is expensive to buy, regardless of whether it is expensive or not. The frivolous people are keen on copying, dyeing the paper with the juice leaked from the hut, and trying their best to practice, so that the old books can't tell the truth. Therefore, most of what Huihou has saved is untrue ... Xiao Wu has also compiled excellent books, all of which despise literati and offer gifts. The authenticity is mixed. " When Song Wendi was in Xinyu, Huihou Liu "cherished the important land" and "hung gold to buy land, regardless of the price" in his book.
In other words, Wang Xizhi's calligraphy was popular at that time, and Huihou, that is, Liu Aihua, bought it heavily. As a result, many people can imitate Wang Xizhi's and sell it to him, so this allusion came into being.