The most important point per JK Rowling

[muscatel1988]

No: HPFGUIDX 134596

--- In HPforGrownups at yahoogroups.com, "UNIX4EVR" <unix4evr at y...> wrote:
> Rowling has said we should be asking why Voldemort lived -- not 
> Harry.  Could it be that Snapes was there and somehow prevented 
> Voldemort's death?
> 
> Or does this have to do wit the horcruxes?

Certainly the consensus here and elsewhere seems to be that since 
death removes the soul from the body, LV didn't die at Godric's Hollow 
because his entire soul was not in his body.  It had been split and 
placed in the Horcruxes.  In other words, unless all seven Horcruxes 
are destroyed, he cannot be defeated.  Since LV is determined to cheat 
death at all costs, creating the Horcruxes was an insurance policy 
against his death - ever.

That's the point of the Horcruxes, and the impetus for the quest for 
them that has already begun, and which must continue in book 7.