What are the characteristics that Jie Jin is good at calligraphy?

Jie Jin's calligraphy had a great influence in Yongle period. Wu Kuan's "Bachelor's Interpretation" said: "In Yongle, there were many books, and the bachelor's interpretation should be the first." His calligraphy is characterized by regular script and big grass. His regular script is graceful and elegant, but with few bones, which basically belongs to "Taige style", which is not unrelated to the court demand at that time. And his "Big Grass" was given by Zhou, Zhou and Zhan Xiyuan. His style is bold and unrestrained, which is quite different from that of regular script. His posthumous works, such as "Kao Yi" and "Poems Written by Me" in Song Dynasty, etc. The style of the book is superb, and the rules are clear, and the management of the rules is particularly clever. The whole article is in one go and forms its own system. However, in his cursive scripts handed down from generation to generation, not all his works are so perfect with both form and spirit, and some have stepped into a wild and extravagant situation because of too much catharsis.