Without a doubt, a “horcrux” is a nasty thing. As any Harry Potter enthusiast knows, a horcrux is a piece of the soul that resides in an external object, possibly in another person. We can have many of them and, so long as one survives, we cannot die. The nasty part is we have to commit murder to create one. An ugly bargain, to be sure, and only an evil person—think Voldemort—would be willing to accept it.
The concept of horcruxes, as offered by J. K. Rowling, can become useful to us if we stipulate a few modifications. What if we’re not talking about slivers of our “soul”—that’s too obscure for me—but about “compartments” in our identity. And what if we don’t have to kill to make them? In fact, what if we don’t have to do much of anything? Say they just spring into existence as we grow and widen our contact with people. No, I’m not suggesting that one might invade our being while we’re sitting next to a stranger on a bus. What I have in mind is repeated exposure to certain people, like parents, grandparents, and siblings—to anyone who propinquity throws in our path, like little Bobby down the street or our 8th-grade history teacher.
Because children are defenseless, horcruxes, both wounding and benevolent, take root easily. Think of young David Copperfield, who internalizes the cruel presence of Mr. Murdstone but also the loving presence of Peggotty. As David grows, Dickens makes him an exemplar of virtue, and this is where the story departs from reality. Like it or not, David will always have a piece of Murdstone buried in him. At an unforeseeable time, somehow, it will appear in a flash of darkness. Hopefully, Peggotty’s gentle affection will express itself more often.
As we approach adolescence, something different happens. Our sense of what’s pleasing and what isn’t, moderated by the horcruxes already settled in, gives us more control over whom we will confide in, love, and avoid. And so it goes throughout adulthood: we take more and more care about whom we lease mind-space to. Because this process is, as I see it, universal, there is reciprocity with those we hold dear: a part of them inhabits us, and a part of us inhabits them. Moreover, the compartments of our identities also find a home in everyone we are close to—our companions, our children, our friends, and, to a diminishing degree, their friends and children. In this way, we are interlaced with one another through generations.
Advances in medicine may give our progeny much longer lives, but immortality will forever remain a fantasy. The best we can do is find a home in the minds we touch.