Prophecies always come true.

[bbkkyy55]

No: HPFGUIDX 131393

I think we were discussing this a while back.  Didn't someone mention 
Macbeth.  I like the theory that prophecies always do come true, but 
that they are generally misunderstood.  As has been mentioned, they 
are worded so vaguely.  We don't even know if we've heard the whole 
version yet.  Except for Trelawney's predictions that Harry would 
die, some of her "insights' actually do come true in a way.  For 
example, when she sees the Grim in POA.  Maybe it wasn't the Grim at 
all, it was Sirius and she misinterpreted it.  

When we hear a Prophecy we immediately put our own interpretation on 
it, when in reality it may be about something else entirely that we 
would never have guessed.

For example, "neither can live while the other survives".  Does that 
mean in a literal "live or die" sense, or is it in a "live life to 
its fullest" sense.  I bet we will be surprised.  IMO Harry should do 
what he feels is right and disregard the prophecy.  In the long run 
that may fulfill it more than we could guess.

Maybe,

Bonnie