The day agreed upon was pouring rain
Rain can represent the downfall of the American Dream. One can view this as a supernatural extinguisher of Gatsby’s flaming passions for Daisy. Another way rain is symbolic is in the sense that tensions are higher between characters than when the weather is clear and light. In an enactment of the pathetic fallacy, the rain is symbolic of the mood at this point. It adds an element of tension to the whole scene. Note that the rain stops as soon as Gatsby and Daisy get comfortable with one another.
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