Answer:
Metaphor
Step-by-step explanation:
Metaphor definition: a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.
Alliteration definition: the occurrence of the same letter or sound at the beginning of adjacent or closely connected words.
Repetition definition: the act or an instance of repeating or being repeated
Consonance definition: specialized music a combination of sounds or musical notes that are pleasant when heard together.
Assonance definition: figure of speech in which the same vowel sound repeats within a group of words
When you look at all of these definitions, the only one that seems to match the sentence, is metaphor.