The superficial achievement of the American Dreams give no fulfillment, no real joy and peace; but instead, creates lots of problems for the characters in the novel.
He did reach the physical circumstances necessary to love her, but he had focused too much on money and power the previous five years of his life. Society is often broken up into different social groups by their economic status.
Those of lower classes believe that their problems will go away if they can gain enough wealth to reach the upper class.
In the past, Jay had a love affair with a young rich girl, Daisy.
Daisy and Jay had fallen in love with each other in spite of knowing that they could not marry because of the difference in their social status.
For the first time in Jays life he was truly happy. Upon returning from the war, Jay found out that Daisy had married a wealthy man by the name of Tom Buchannon.
Jay then spends his life acquiring wealth to reach her economic standards, in hope that he can marry her and rekindle the happiness that he once had.
Many people believe that the American Dream is this joining of the upper class, and once reaching that point, not having to be concerned about money at all.
The logic behind this is that being poor keeps people from being happy, and once you become rich, you do not have to struggle with the problems of life, and can therefore be happy.
For Nick Carraway, his goal is to find someone whose achievement in life could prove that the American Dream is not an illusion.
For Daisy Buchanan, her dream is to reach a higher standard of living and to become very rich even though she has to pay the price of betraying her own heart and her loyalty to Gatsby’s unconditional love.