How to write the concept of calligraphy creation

Calligraphy is different from other art categories, and it has the function of directly reflecting the concreteness (or abstraction) of things. It can only attach (not embody) the abstraction of things through isomorphism with something, and it embodies the thoughts and emotions of works with its inherent legal (that is, abstract forms) points, lines and surfaces. Booksellers can give full play to their creative intentions. Or empty or sick, or accept or release, or light or heavy, or empty or real, so as to express their pursuit of beauty and express their feelings.