Is brush calligraphy the art of calligraphy?

Personally, I think that "calligraphy" as the name implies, "book" writing, "law". Calligraphy is a kind of writing method, which will show visual and sensory effects after writing, that is, the artistry and appreciation of calligraphy. Calligraphy has a long history and is constantly inheriting and innovating. Calligraphy is also divided into soft pen and hard pen, but generally only the brush is emphasized, which is related to the structure and writing method of the two pens. Brush can better reflect the brushwork and charm of words, and show the spirit of words and writers in all directions. So calligraphy is not just writing, but writing "God". Of course, this is just my own opinion, and it does not represent authority.