The main theme of the great Gatsby is to personify the American dream which was to move out of poverty and acquire money and materialistic things.
Explanation:
The Great Gatsby is a 1925 novel written by American author F. Scott Fitzgerald that follows a cast of characters living in the fictional towns of West Egg and East Egg on prosperous Long Island in the summer of 1922.
The Great Gatsby explores themes of decadence, idealism, resistance to change, social upheaval and excess, creating a portrait of the Roaring Twenties. In the 1920s, the American Dream started morphing from the right to create a better life to the desire to acquire material things. This was described in the F. Scott Fitzgerald novel, The Great Gatsby.