The setting of Gatsby's opulent mansion in West Egg contributes to the overall atmosphere of excess and decadence surrounding the characters. The lavish parties, extravagant decor, and wealth of the surroundings create a sense of indulgence and superficiality among the characters. The juxtaposition of Gatsby's extravagant lifestyle with the underlying themes of loneliness and unattainable dreams adds depth and complexity to the story.
