However, to understand this concept it is essential to understand where Gatsby's wealth comes from. Gatsby's wealth came from selling “cereal alcohol over the counter” (133) during a time when Prohibition was in effect. He then spent his money on parties where his guests "dived from the tower of his rafts" (39) into his swimming pools. From Gatsby's parties it is evident that Gatsby allows his guests to enjoy his wealth through occasions such as parties at his swimming pool. Gatsby's desire to keep all his guests joyous at his parties through his wealth led to the creation of an alternative symbolic meaning for the pool. The pool could represent Gatsby's desire to express joy. Noticing that Gatsby wants to express joy is important, because it describes why Gatsby wants to marry Daisy. Because Gatsby believed that he would not be able to keep Daisy happy through events such as his parties and items such as his swimming pool, he smuggled alcohol so he could marry Daisy. Gatsby may feel that money means happiness since “He was poor… [Daisy] was tired of waiting for him” (130). However, by acquiring riches such as the swimming pool, Gatsby believes he can win Daisy back, leading Gatsby to believe that his riches are the main reason why Daisy will fall in love with him.