Write what the meaning of the figure of speech means: Maria's favorite song wrapped its arms around her and rocked her to sleep

The figure of speech here is personification.

Personification is a figure of speech where human qualities are attributed to inanimate objects, animals or phenomena. In the sentence: " Maria’s favorite song wrapped its arms around her and rocked her to sleep", the song is personified as having the human ability to comfort and embrace a person, and soothe them enough to "rock" them to sleep.