What do you mean by "peerless and unique, fragrant and unique peony"?

"Beautiful beauty is the only beauty, and millions of beautiful women are the only peonies" means: beauty is the only beauty, and peony is the first flower.

Source:

Only the calligraphy is unique, and the people only have peony. The moon is full of laurel trees and the sky is full of orchids. Night is full of gold, jade stays in the morning. -Bai Juyi's Peony

Appreciate:

In Bai Juyi's works, rich imagination, bold exaggeration, clever personification and so on. All kinds of artistic techniques are combined in one furnace, which makes this poem like a Chinese painting, freehand brushwork, showing the charm of peony flowers and giving people an immersive feeling. ?

The language of peony poems in Tang Dynasty is mainly simple and fluent, like Bai Juyi's poem "Deep meaning and shallow words, bitter thoughts and sweet words." (Yuan Mei) His poem "Buy Flowers" is aimed at "I want to see Yu Yi (Bai Juyi) and I am approachable." The language of other poets' peony poems also shows this feature. For example, Ling Huchu wrote a poem "Go to Du Dong to bid farewell to peony"?