Answer and Explanation:
The text we are analyzing here is part of Chapter 8 of "The Great Gatsby" by F. Scott Fitzgerald.
The main character, Gatsby, has gone through a lot in his pursuit of Daisy, the love of his life. When Gatsby left for the war, Daisy married Tom Buchanan, an unfaithful millionaire. Now, Gatsby is trying to get her back. He gets involved with criminal businesses to become a millionaire as well and moves to a mansion right across the bay from Daisy's. Gatsby throws grand parties with the hope that Daisy will one day walk through his doors. They eventually become lovers, but a tragedy is about to end it all for them.
"Gatsby shouldered the mattress and started for the pool. Once he stopped and shifted it a little, and the chauffeur asked him if he needed help, but he shook his head and in a moment disappeared among the yellowing trees."
In the text above, Gatsby is about to be killed by George Wilson. There are a couple of symbols in the text that foreshadow Gatsby's death, such as his brief hesitation and the yellowing trees - green would mean life, but yellow is a reminder that winter is on its way, and that the trees will soon look lifeless. It is also interesting to notice that he is finally about to take a swim in his pool, something he hasn't done all summer. It is ironic that, when Gatsby finally takes some time to enjoy his life, it will suddenly be taken from him.