Details are as follows:
The first realm: writing pursues beauty. Calligraphers practice calligraphy. When I was a beginner, my handwriting was ugly and I began to write well.
The second realm: the style of writing began to become ugly. Proficient in calligraphy skills, proficient in writing, not satisfied with the pattern of * * * *, began to innovate, pursue their own personality, and began to write slowly, from beauty to ugliness, which is a process of self-exploration;
The third realm: writing beautiful articles with ugliness;
The fourth realm: write ugly words with beauty. This is the highest state.