Sirius' soul

[pitaprh]

--- In HPFGU-Movie at yahoogroups.com, Valerie Flowe 
<valerie.flowe at v...> wrote:
> This is probably a rhetorical question, but during the lake scene 
when
> Sirius's soul is getting sucked out, one sees a few sparkles of 
light come
> out of his mouth. Then nothing (I assume  he's dead, or at least 
soul-dead,
> at that point). Then the big deer patronus and the light goes back 
in his
> mouth, and he gasps for breath. That's a visual for his soul, yes? 
Cool
> effect. Scary too.

I thought the soul was sucked out only when the Dementors did 
the "kiss".  So that part of the movie somewhat confused me.  They 
weren't performing the "kiss", were they?  I don't think so.  So what 
was that?