Cultural literacy contributes to the study of calligraphy. When your basic skills are getting better and better and you have cultural knowledge, you can understand the carrier of calligraphy-rubbings. If you can read the inscription, you can read the content of the article itself, feel the relationship between words, and have your own understanding of the formation of calligraphy.
For example, the reason for writing words in a flowing or angular way actually comes from the inner rhyme of the article. You can't learn the charm and temperament of calligraphy if you don't have the cultural accomplishment to let you realize this inner rhyme.