Answer: Personification
Step-by-step explanation:
Personification is a type of figure of speech, which confers human qualities to an object or an animal to convey an idea or feeling.
In this excerpt, the sun has been presented as capable of rapidly crawling down the cliff and going towards the author as if the sun could be capable of making such decisions. This figure of speech provides drama to a scene that has the author being shocked by how fast the sun rose that morning.