Final answer:
The literary device exemplified in the text is repetition, a tool used for emphasis and clarity in literature. It serves to highlight significant themes or symbols, contributing to the narrative's style and reader's experience of the text.
Step-by-step explanation:
The literary device depicted in the provided text is repetition. Repetition in literature is the purposeful re-use of words and phrases to make an idea clearer and more memorable. As highlighted in the case of F. Scott Fitzgerald's The Great Gatsby, a green light is repeatedly referenced throughout the narrative, which suggests significance. An author's deliberate use of repetition often points to thematic elements or symbols in the story that they want to emphasize. Therefore, when reading, it's important to be aware of repeated language as it may reveal larger patterns or literary devices that contribute to the story's impact.
In the context of rhetorical analysis, noticing repetition and other devices like similes, metaphors, and personification enriches our understanding of the text. Rhetorical devices such as these are fundamental tools that writers employ to craft their narrative style, making their writing more vivid and engaging. Just as an artist uses different tools and materials to create visual art, writers harness various literary techniques to construct worlds with words, thereby defining their voice and the aesthetic experience of their literature.