1. Sound and stillness in poetry: Wang Wei's pastoral poems often describe the sound and stillness of nature, such as birdsong, wind and rain. These subtle sound changes and static atmosphere are difficult to show in painting.
2. Motion and quietness in poetry: Wang Wei's poems have both dynamic descriptions, such as flowing water and wind, and static descriptions, such as quiet pastoral scenery. These dynamic and static combinations are difficult to express in painting.
3. Emotional expression in poetry: Wang Wei's pastoral poems are full of emotional expressions such as love for nature and longing for rural life, which are difficult to express in painting.
In a word, Wang Wei's pastoral poems are characterized by musicality, dynamics and emotional expression, which are difficult to fully express in painting. This is also the unique charm of poetry as an art form.