When the trio attempts to move down to the waterfront they are held up by the rain, giving Gatsby the opportunity to make a telling statement. He informs Daisy, who clearly has no idea, that her house is right across the Sound from where they are standing. He then continues, informing her "You always have a green light that burns all night at the end of your dock." Gatsby's admission of this secret is lost neither on Nick nor on Gatsby himself (according to Nick). Daisy, however, remains oblivious to its meaning. She is unable to grasp that by Gatsby telling her this, he has shared one of his most sanctified rituals. Prior to that day, the green light (representing many things: hope, youth, forward momentum, money) represented a dream to him and by reaching out to it, he was bringing himself closer to his love. Now that she was standing beside him, her arm in his, the light will no longer hold the same significance. His dream, the goal for which he patterned most of his adult life on, must now change.
Gatsby and Daisy are, as is evidenced in this chapter, generally a good match. Gatsby's dreamlike nature compliments nicely Daisy's ethereal qualities. Gatsby, the collector of "enchanted objects," as Nick says, seems the perfect match for the otherworldly Daisy who runs exclusively on emotional responses. As if caught up in Gatsby's dream vision, Daisy calls him to the window to look at the "pink and golden billow of foamy clouds," declaring to Gatsby that she'd "like to just get one of those pink clouds and put you in it and push you around."
