I can't say I've ever experienced an emotional state such as you describe, of just not caring about anything, so this is probably useless advice. That said, I find that when I am feeling conflicted about what actions to take, or what I want to do, I respond well to cleaning out excess 'stuff' from my life.

For instance, just over a year ago I had so many books overflowing my bookshelf that I needed to get a second one to start storing them on. But gradually, over the last year I've switched to a mental space that values quality and simplicity over quantity. Now I have far less than one bookshelf's worth left. Every so often I'll feel burdened, and when I do I look over my books, movies, or other possessions and get rid of things that I don't really care about -- and it's amazing how much I've accumulated over the years that's really not important to me.

I find that removing unnecessary crap from my life helps me focus better on what is left. I always finish the process feeling much less burdened, and lighter. It feels to me like it's coming from the same direction as your piece, if not to the same depth; I am worried that I might have totally misread the mood of your piece though. Is this the case?