How to understand that calligraphy is an excellent traditional culture in China?

First of all, you can take a look at Baidu to understand what traditional culture is.

Traditional culture is a national culture that reflects national characteristics and features, and it is the overall expression of various ideological cultures and ideologies in national history. Every nation in the world has its own traditional culture. China's traditional culture takes Confucianism as its core, as well as Taoism, Buddhism and other cultural forms, including: ancient prose, poetry, ci, qu, fu, national music, national drama, quyi, traditional Chinese painting, calligraphy, couplets, riddles, shots, wine orders, two-part allegorical sayings and so on.

Secondly, students learn the simple explanation of China's traditional culture: Take history as a mirror, and live in peace for generations.

As sons and daughters of China, any art form of traditional culture is directly proportional to our cultivation. Just as calligraphers often use "words are like people" to compare calligraphers' virtue and character.

This is my little experience for your reference only.