Answer:
personification and I think simile
Explanation:
personification is giving non-human things human-like traits. His soul cannot wrap itself around darkness - it's impossible
it might also be a simile because it is comparing the soul to a grament using like or as.
Annabeth's actions in Chapter 18, when she distracts Cerberus with the red ball she stole, prove that she is intelligent and quick on her feet, always preparing. These are all traits of a daughter of the goddess Athena.
When you use imagery in poetry it helps you to visualize it more or better.
Visual effect of poetry.