What kind of poetic device was notorious big using in the song juicy?

The poetic device used in the song "Juicy" by The Notorious B.I.G. is called "anaphora." Anaphora is the repetition of a word or phrase at the beginning of successive clauses, phrases, or sentences. It is a rhetorical device often used to create emphasis, build momentum, and add a musical quality to the text. In the song, The Notorious B.I.G. repeats the phrase "It was all a dream..." to create a sense of progression and a connection between his past, present, and future.