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The Blue Danube
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- May be a hint that Hurley will play a role in reuniting Jack, Kate, and Sawyer with the Losties. Hurley was one of four captured by the Others but was "rejected" by them and given the task of warning the Losties not to venture onto their territory.
- Refers to Juliet as "Daffy," attempting to join with the other swans (a reference to the Swan station). As Daffy, Juliet would be pushed out by the Flight 815 survivors, but would ultimately gain acceptance by helping them defeat the vulture. The vulture could be represented by either Ben specifically, or The Others at large.
- Could just generally refer to any instance of someone being rejected and redeeming themselves. Hurley and Juliet are good examples.