The word "true national color" in the poem emphasizes the importance of being a ruler. Compared with peony and hibiscus flowers, peony is elegant and gorgeous, which has the effect of "moving the capital" and full of charm.
By writing about the beauty of peony and the purity of hibiscus, the beauty of peony is compared with peony.
The personification of "unqualified devil" and "pure lack of emotion" are metaphors of "true national color"
This poem expresses people's love and respect for peony at that time through appreciation of peony.
This poem uses the following artistic techniques.
(1) The application of contrast technique. This poem is written with three famous flowers, and both praise and criticism are measured. Writing peony "demon" is about its gorgeous and charming state, not derogatory. Writing lotus "net" means cleanliness. The poet didn't write these two flowers for nothing because he highlighted the peony, but in order to highlight the peony, the poet still wrote these two flowers worse than the peony.
(2) Metaphorically, personification makes physical flowers have human touch and can enhance the artistic appeal of poetry.