Polysyndeton is a stylistic device in which several coordinating conjunctions are used in succession in order to achieve an artistic effect.
“Let the whitefolks have their money and power and segregation and sarcasm and big houses and schools and lawns like carpets, and books, and mostly–mostly–let them have their whiteness.” (Maya Angelou, I Know Why the Caged Bird Sings)
The deliberate repetition of the first part of the sentence in order to achieve an artistic effect is known as Anaphora.
Politicians frequently use anaphora as a rhetorical device in their addresses and political speeches to evoke passion among the audience. Read an excerpt from Winston Churchill’s speech during the Second World War:
“We shall not flag or fail. We shall go on to the end. We shall fight in France, we shall fight on the seas and oceans, we shall fight with growing confidence and growing strength in the air, we shall defend our island, whatever the cost may be, we shall fight on the beaches, we shall fight on the landing grounds, we shall fight in the fields and in the streets, we shall fight in the hills. We shall never surrender.”