"He knew that when he kissed this girl, and forever wed his unutterable visions to her perishable breath, his mind would never romp again like the mind of God."
This quote displays, quite clearly, how Gatsby utterly glorifies Daisy in his mind to the point where he is no longer in love so much with the person she is. He is in love with his grand beautiful idea of her, an expectation that no person could possibly ever live up to. Gatsby is in love with the Daisy he has dreamed about for so many years, the Daisy that doesn't exist and never did.