Harry's Dream Before the Second Task

[Cindy C.]

No: HPFGUIDX 27823

A while back, Steve mentioned that he was adding more about Harry's 
dreams to the Lexicon (I think).  That caused me to remember another 
of Harry's GoF dreams that might mean something (or might not).

It is the dream before the second task:

The mermaid in the painting in the prefects' bathroom was laughing.  
Harry was bobbing like a cork in bubbly water next to her rock, while 
she held his Firebolt over his head.
"Come and get it!" she giggled maliciously.  "Come on, jump!"
"I can't," Harry panted, snatching at the Firebolt, and struggling 
not to sink.  "Give it to me.!"
But she just poked him painfully in the side with the end of the 
broomstick, laughing at him.

Then Dobby wakes him up.

Maybe there's nothing to this dream beyond the obvious.  But I 
wondered if anyone has a theory, because I don't.

Cindy