Baudelaire (1821-1867), like many other 19th-century writers, used various ideas and images borrowed from ancient literary heritage. He was perhaps not the first to include the devil in his work.

He was preceded by Byron (1788-1824), who first considered Satan as a friend of human beings in his Cain (1821). Although Baudelaire was accused of stepping out of religion and into infidelity, his excellence in this profession was a form of modernity and an aesthetic literary style that won widespread approval at the time and was delivered in a religious style defending him from the attribute of incredulity.

In this work, we will attempt to shed light on the method adopted by Baudelaire to write his Fleurs du mal, which are full of the love and glorification of evil and are based on Baudelaire's black vision towards the world, life and man. We will attempt to deal with this subject by discussing causes and results with illustrative examples borrowed from Baudelaire's library of poetry, asking the Lord that this study attract your attention.

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