Why is Gatsby so great?

A dream is defined as: a fanciful vision of the conscious mind; a fond hope or aspiration; anything so lovely, transitory, etc. as to seem dreamlike. In the beginning pages of Fitzgerald's "The Great Gatsby", Nick Carraway, the narrator of the story gives the audience a glimpse into Gatsby's idealistic dream which is later disintegrated. "No- Gatsby turned out all right at the end; it is what preyed on Gatsby, what foul dust floated in …showed first 75 words of 1064 total…

…showed last 75 words of 1064 total…to the accomplishment of a supreme object, an embodiment in someone else; to restore to himself an illusion he had previously lost. He came from an ordinary background and built himself up to where he ended. He loved Daisy unconditionally and made a life for himself. He was loyal to the end, never straying from his dream once. "Gatsby is the essence of gesture, of not having the substance of life but having the cover."