Pen moves dragon and snake: dragon and snake jump into the pen. It describes the vigorous and free brushwork of calligraphy and is also written for the conductor.
Huang Ting: Huang Ting: The Taoist classic "Huang Ting Jing", which was written in small letters by Jin people. In the old days, there was an idiom "writing Huang Ting at the beginning is just right", and later it was compared to doing things just right.