What caused Dong Qichang's calligraphy?

Dong Qichang, who made great achievements in calligraphy and calligraphy in the late Ming Dynasty, became a shining and hot figure in Qing Dynasty because of the attention of Emperor Kangxi. At that time, the ruling and opposition parties swarmed up and down to inherit the emperor's will, which eventually led to the iron and blood calligraphy dominated by Dong Shi, which embarked on a pavilion-like road and became a tool to cultivate wealth and decline.