How did Charles Baudelaire and Arthur Rimbaud expand the themes of French poetry?

Charles Baudelaire and Arthur Rimbaud were pivotal in transitioning French poetry from the emotional rhetoric of Romanticism toward the modern focus on symbol and suggestion.1

Charles Baudelaire

Baudelaire expanded poetic themes by representing the complexity of modern life, balancing the prosaic with the melodic to explore the interdependence of opposites. In his collection Les Fleurs du mal, he introduced a structured thematic approach, moving away from simple emotional statements to capture the psychological and moral reality of the modern individual. He also pioneered the use of synesthesia—the association of different senses—to create an evocative magic of images and sounds.213

Arthur Rimbaud

Rimbaud pushed these boundaries further by seeking to become a "visionary" who could break free from conventional perceptions and rationalist categories. His work explored:4
* Sensory Transcendence: He utilized imagery based on intense sense impressions to express a longing for union with the natural world.5
* Surrealism and Vision: In poems like The Drunken Boat, he moved beyond common sense into surreal decors and states of ecstasy.4
* Modern Unconscious: His later works, such as Illuminations, captured the tumult of revolt, despair, and liberation, reflecting the complexities of the modern unconscious.4