Where is the strength of calligraphy reflected?

My personal opinion is, first of all, lines, which are powerful and smooth, can reflect the author's ability to use a pen. Decisive and refreshing lines are more powerful than trembling lines. No matter what style of writing, this is the basic requirement.

The second is the form of expression, namely the form of books and works.

In terms of calligraphy style, Weibei is a typical one with a broad and powerful structure. Regular script represents Yan Zhenqing, with an extended structure, strong fonts and strong expressive force.

Formally speaking, calligraphy and fighting works emphasize aesthetic feeling, while banners, or large-scale works, want momentum and require different connotations.

The third is composition, which I personally understand. From the layout point of view, Qifeng protrusion is more powerful and has stronger visual impact than Liefu's works.