There is a difference between vigorous and powerful calligraphy.

Give me extra points when explaining. Vigorous refers to mottled vigorous strokes, and vigorous refers to powerful strokes. That's right. The difference between them is mainly the movement of the wrist.

Less ink and less pen, the wrist should be closed quickly, sharp and not delayed at all, otherwise it will not be energetic. It is not difficult to rewrite the pen, just stretch it in place at a constant speed. I hope it can help you feel reasonable and give points.