The one with the power to vanquish the Dark Lord approaches, born to those who have thrice defied him, born as the seventh month dies. And the Dark Lord shall mark him as his equal, But he shall have power the Dark Lord knows not... and either must destroy all but a remnant of the other, for those two different spirits cannot exist in the same world.

Looking at this with my current eyes, I see no reason to anthropomorphize the Dark Lord more than necessary. I think it is reasonable to say that Harry is "born" of the Peverell brothers, who have thrice defied death. Even at this point, death/dementors have marked Harry as an equal (by dealing with him), he has power that they know not, and he has resolved to destroy "all but a remnant" of it.