A dream is defined as a condition or achievement that is longed for; otherwise, know as an aspiration. It's always good to have dreams and aspirations. You should do you best to pursue them. However, when you compromise your morals and your beliefs in order to achieve this dream, then you may end up even further away from your dream that where you started from. This could lead you into a huge mess and totally destroy the way you wanted your life and dream to go.
For example, Gatsby had a dream. Gatsby was in love with Daisy and wanted to have another relationship with her. However, Daisy was married to a man named Tom. Tom and Daisy had gotten married back when the war was going on. Before this though, Gatsby and Daisy had a relationship. Unfortunately, it ended and the couple of Tom and Daisy was formed when Gatsby left for war. This terribly upset Jay. Daisy was his whole life; she was all he wanted in life. This love and jealously of Tom lead Jay to compromise his morals and to try and complete his goal; getting Daisy back, no matter what it took.
Jay tried his best to get Daisy back. For instance, Jay held huge elaborate parties every weekend that were very elaborous. These parties involved heavy partying and drinking. Jay managed to afford these expensive parties by his wealthiness. This was not the problem though. The problem was how he was wealthy. He acquired all this money though illegal activities. Gatsby was involved with the wrong crowd and gained a large sum of his money though bootlegging and other various illegal activities. Jay was even friends with the guy who was suspected of corrupting the World Series. Jay Gatsby knew these choices of friends and actions were unmoral and not satisfactory. .
Gatsby wanted Daisy back so bad that he didn't care about whether it was wrong or not to bootleg. He kept bootlegging anyway. His drive to achieve his goal of getting Daisy back over weighed his morals in life so much that he disregarded his inner conscience.