Why is unpleasant pain bad for us? Evidently because of how it feels. This bit of commonsense is a challenge for well-being perfectionism, since pain doesn’t look anything like failure to fulfill human nature. Here, I sketch a new version of perfectionism that avoids this problem. To explain what is basically good for us, it appeals to the capacities whose functioning defines who we are, or our subjective nature, instead of human nature. I argue that these capacities have a telic (...) structure, so that practical reason, for example, constitutively aims at competently realizing valuable ends that are in harmony. According to telic perfectionism, we do well when such formal aims are realized and badly when they’re frustrated. Crucially, our subjective nature is defined not only by how we reason but also by how we feel. And valenced experience, too, has built-in directionality, according to the most plausible views about the nature of pleasure and pain. The phenomenal character of unpleasant pain is inseparable from its setting for us the end of eliminating itself. As long as we are in pain, then, the formal aim of our self-defining capacity for valenced experience is frustrated. For telic perfectionism, unpleasant pain is thus robustly bad for us, and the explanation of its badness makes essential reference to how it feels. (shrink)