Why did <PERSON> say that it was "essential" that <PERSON> kills <PERSON> if <PERSON> was anyhow bound to life by his blood inside <PERSON>?
This is for me the biggest unresolved question of the Books. <PERSON> planned from the beginning that <PERSON> should first destroy all horcruxes and then should die by the hand of <PERSON> (which leads to <PERSON> telling to <PERSON> that he must die) and that <PERSON> should kill <PERSON> as last thing. The point is: why? <PERSON> since the Goblet of fire was "immortal", namely since <PERSON> took <PERSON>'s blood in his vein. Quoting the 7th book, chapter 35: ‘Precisely!’ said <PERSON>. ‘He took your blood and rebuilt his living body with it! Your blood in his veins, <PERSON>, <PERSON>’s protection inside both of you! He tethered you to life while he lives!’‘I live ... while he lives? But I thought ... I thought it was the other way round! I thought we both had to die? Or is it the same thing? [...] ‘He took your blood believing it would strenghten him. he took into his body a tiny part of the enchantment your mother laid upon <PERSON> when she died for you. 773
His body keeps her sacrifice alive, and while that enchantment survives, so do you’. And this all make sense with the prophecy. So, it is clear that <PERSON> would (or better COULD, if he chose to return back every time he died) live, even if he jumped from a cliff or someone killed him, till <PERSON> was alive. Then, why not kill himself alone (or with the help of his friends) to destroy the part of <PERSON> which is in him and then do the other things? Why is it so essential" that it is <PERSON> to kill <PERSON>? The only reason I could find is the fact that <PERSON> wanted <PERSON> to accept death so that he could fully handle all the Deathly Hallows in order to have the power to kill <PERSON> (and yes, the Deathly Hallows in the books have only the function of making <PERSON> strong enough to kill <PERSON>, which in the end happened and was the reason <PERSON> won, because <PERSON> died by the elder wand as <PERSON> was the master of it, since <PERSON> took it from <PERSON>'s manor. Deathly Hallows have nothing to do with <PERSON> returning to life or anything special, they are only power). To support this, in book 7, chapter 35 <PERSON> says ‘If you laid hands on them, I wanted you to possess them safely. You are the true master of death, because the true master does not seek to run away from Death. He accepts that he must die’. Still, <PERSON> could have processed and accepted death even from other death eaters or other people, so I think that this is not the answer. 773