Society has formulated this idea over time.
Hence, the divides between people are clearly defined and untrancendable. For Jay Gatsby and many others, the American Dream is about gaining wealth and material possessions in an attempt to find happiness. The idea that the worth of a human being lies in the value of his possessions comes into play in this instance.
The Twenties were a time of social experiments, self-indulgence, and dissatisfaction for majority of Americans. Daisy Buchanan exists at two well-defined levels in the novel.
The pioneers headed west for the same reason. It has been written in latethe characters in the novel focus upon a fictional town of West Egg. This dream also represents that people, no matter who he or she is, can become successful in life by his or her own work.
One question that I think many readers have is why did it end so sadly for Gatsby? This fore mentioned dream causes much hope and opportunity, but additionally makes the weakest link plummet.