It is generally called "synaesthesia".
Baudelaire believed that there is synaesthesia between different senses: "Fragrance, color and sound echo each other." He once wrote in an art review: "Everything, form, movement, quantity , colors, aromas, whether in nature or the spiritual world, are meaningful, interrelated...interconnected"; everything is based on "universally connected, inexhaustible resources". In this famous poem, the theory that all feelings are connected is vividly and completely put forward. This poem mainly explains this theory based on fragrance: the fragrance is similar to the touch: tender as a child's skin; then it can be heard: soft like an oboe; and finally melts into the sight: green like a grassland. Different feelings interact with each other as they all tend toward a unified moral concept: purity. Then the corrosive, rich and triumphant aroma is contrasted with the previous aromas. The texture of these aromas can expand infinitely. They continue to rise and lead the poet to imagine higher realities. Expansion then becomes a state of ecstasy, and sensual intoxication leads to mental ecstasy. At this point, synaesthesia reaches its climax, the result of a feverish mind and senses.
The theory of synesthesia has opened up a new way for literature and art. From now on, artists can use sound, color and other means to express emotions. Please enjoy a piece of Baudelaire's "Harmony of Dusk" below. The success of this poem is largely due to the use of the artistic method of synaesthesia.
The time has come, each flower trembles slightly on the branch,
It is like an incense burner, emitting clouds and mist,
The sound and fragrance are in the dusk. Whirlpool dance,
A melancholy waltz that makes people dizzy with fatigue!
It is like an incense burner, emitting clouds of mist;
The violin is trembling like a tortured heart;
The melancholy waltz makes people dizzy with fatigue. dizzy!
The sky is as beautiful and sad as a temporary altar.
The violin trembles like a tortured heart,
The gentle heart hates the black nothingness!
The sky is as beautiful and sad as a temporary altar,
The sun dissipates in its own coagulated blood.
The gentle heart hates the black nothingness,
Collect all the remnants of the glorious past!
The sun dissipates in its own coagulated blood...
Like the Holy Body shining, your image makes me dizzy!
The synaesthesia technique of this poem has the following three points: 1. The waltz dance is performed in the dusk with the fragrance, causing communication and interaction between various senses of smell, vision and hearing. Thus "tired and dizzy." 2. The synaesthesia between the dusk atmosphere and the poet's mentality. 3. Synaesthesia between the earth and heaven. This poem is a poem about love, and it is extremely implicit: there is no image of a lover in the whole poem, nor is the word love mentioned. The beauty of this poem is that it is implicit but not explicit, allowing people to understand it.