(Spoiler) Tethered to Life

Chapter 35, page 709:
"Precisely!" said Dumbledore. "He took your blood and rebuilt his living body with it! Your blood in his veins, Harry, Lily's protetion inside both of you! He tethered you to life while he lives!

I read it again, and I still don't get it.

It sounds like he means that Voldemort cannot kill Harry due to Harry's blood running through his veins. Essentially, Harry can kill Voldemort, but Voldemort cannot kill Harry.

AHacker

I still don't et it either. The whole thing's a bit convoluted.

I got the impression that somehow Lily's protection throught her death continued past his leaving the Dursley's and past his 17th birthday because of Voldemort's use of Harry's blood. I don't know how but I think that's what Dumbledore is saying.

That's what I was thinking.

what i think is:
whe lily sacrificed herself she gave him the protection and it ran through his veins. So when voldemort took his blood then he had the protection too. so he couldnt die. harrys protection lived in voldemort so harry had to live while voldemort lived

Of course, as TIRADE I just go with convulted.

But the fallback explanation was that it was just a blood-bond. Harry and Voldemort's life forces were linked by the ritual, and that was strengthened by the other powerful magical connections they had- Harry's scar as Voldemort's Horcrux, Lily's protection for Harry against Voldemort later also carried, in some manner, by Voldemort himself, and Voldemort's reborn body created from Harry's blood.