What does small nib calligraphy mean?

It means externalization of people's inner feelings.

According to relevant data, it, like language, reflects a person's character and self-restraint. For old scholars, writing is the first lesson in life. It is the externalization of people's inner feelings.

Calligraphy is a special artistic expression of the beauty of words. This refers to writing words according to their characteristics and meanings, making them a beautiful work of art.