Can calligraphy express the author's feelings?

A typical example is Preface to the Lanting Pavilion, the first running script in the world (written by Wang Xizhi on a whim, the feeling of emotion, quietness, exquisiteness and full of emotion comes to the fore on the paper, and the whole calligraphy is beautiful and elegant, and the painter is exquisite, such as entering the realm), and the second running script in the world-the manuscript for offering sacrifices to nephews (written by Yan Zhenqing on a piece of paper full of grief and indignation, so-called the second in the world). Therefore, calligraphy is entrusted with the author's emotion, which is caused by the creator's emotion.