What exactly do the three beauties of blue-and-white porcelain poetry mean?

Beauty in music, painting and architecture.

1. Musical beauty: Blue-and-white porcelain poems are well-proportioned and have even sentences. There are formats, scales, levels and rhymes.

2. The beauty of painting: there are paintings in blue and white porcelain poems, and the poetic language is beautiful and colorful.

3. Architectural beauty: Blue and white porcelain poems are well-proportioned from paragraph to paragraph, even from line to line, with little difference between lines and a sense of neatness.