The Question of Immortality in HP

Some time ago, I posted a couple of completely random and totally unconnected theories. I said about those that I take them for granted until Rowling proves me wrong. True as this is, it only applies to my personal fiction universe: i.e. I take those theories for granted in my personal perception and my writing. If Rowling decides to point out in book 6 that Remus indeed has scars and that Parvati truly is the silly girl she's considered by the majority of the fans, I shall be mildly disappointed, but it won't change anything about my perception of the series.

There is one thing, however, which I believe in so firmly that it will considerably affect my reading of the novels. I am convinced that the leitmotif of the series, the key to Voldemort's plans and (though I don't know in which way) the climactic turning point is the aspect of immortality.

For me it is obvious that immortality is what Voldemort is really after, and I have discussed this topic at some point or other, most often in passing. It is so obvious to me that I feel rather silly typing this essay, because I think that it must be obvious to everyone else, as well, because, duh! Rowling spelled it out for us.

( Why? Well... )