Siren

• Daisy’s wealth was not the only thing that Gatsby was attracted to. Gatsby describes Daisy’s voice as being “full of money”. This suggests that Daisy’s voice is full, not just of money, but of promises - there’s something about it that tells the reader that wonderful things are on the horizon. Her voice is irresistibly seductive, that all the other characters are drawn to her because of it, with Nick saying she had a “low thrilling voice”.
• This idea alludes to mythological sirens from 'The Odyssey'.  The island-dwelling sirens sang to passing sailors, and their song was so seductive that the sailors would throw themselves into the sea and drown trying to get to them. Daisy is like a modern siren; when Gatsby ‘stretched out his arms towards the dark water’ to the green light across the sound we can almost imagine him throwing himself into the ‘dark water’ to reach Daisy - this image is corroborated with Gatsby’s past as a sailor.
•  This image of Gatsby dying in the ‘dark water’ returns at the end of the book where Gatsby meets his demise in his pool - where he was because Daisy chose Tom over him - “with little ripples that were hardly the shadows of waves”. The words ‘shadows’ and ‘dark’ both have connotations of danger, death and the unknown, therefore implying that Daisy was destined to cause the death of Gatsby. Highlighting the superficiality of the elite.