How could Harry believe in the Dream ?

[delwynmarch]

No: HPFGUIDX 101889


Let's say I have a favourite TV series, and each time it's rerun, I
keep missing the very same episode (happened to me in RL, dead
annoying :-) Well, it's not exactly that I miss the episode, it's just
that I'm always interrupted sometime through it. But each time, I get
to see a bit more of it. And then comes the day when I get to see
almost all of it, and surprise ! My favourite character falls off a
cliff and is considered dead.
But wait ! I know that this episode was originally aired years ago,
and that in the current episodes, my darling is alive. So of course I
guess that he's going to be found in the last remaining minutes, right ?

So my question is this : Harry had been having the same dream for
almost a year. Each time he sees a bit more of it, but it's always the
same dream, down to the details. And one day he sees Sirius being
tortured. But it's still the very same dream ! The same one that he
had several months ago, he's just seen more of it. It's NOT AT ALL
like the dream about Arthur Weasley, which came completely out of
nowhere and wasn't related to anything he'd seen before. So how could
Harry believe that this dream about Sirius was showing him something
that was actually happening ?

Del