The Great Gatsby explores themes of idealism through its depiction of Gatsby.
The Great Gatsby . The story primarily concerns the young and mysterious millionaire Jay Gatsby and his quixotic passion and obsession for the beautiful former debutante Daisy Buchanan . Considered to be Fitzgerald 's magnum opus , The Great Gatsby explores themes of decadence , idealism , resistance to change , social upheaval , and excess , creating a portrait of the Jazz Age or the Roaring Twenties that has been described as a cautionary tale regarding the American Dream .