Why are the basic characteristics of calligraphy art emotion and symbol?

Calligraphy art contains the beauty of implication in formal beauty, which embodies profound national traditional aesthetic thoughts and calligrapher's spiritual temperament and aesthetic pursuit, thus making every Chinese character seem to have life, making these abstract points, lines, pens and paintings seem to be the muscles, bones and flesh of an organic life, thus making calligraphy, which originally had only practical writing value, sublimate to the artistic realm and convey the feelings and thoughts of our nation.