The real wisdom here isn't about contrast—it's about perception itself changing under duress. Dostoevsky suggests that suffering doesn't merely provide a backdrop for hope; it actually *recalibrates* our ability to recognize beauty, meaning, and goodness when we encounter them. A person emerging from depression doesn't simply see joy more clearly the way we see stars on a moonless night; they've been fundamentally altered by the darkness, now capable of noticing small kindnesses or moments of connection they'd previously taken for granted. This is why someone who has survived genuine hardship often possesses a kind of gratitude that others find puzzling—they're not grateful *despite* having suffered, but grateful because suffering rewired what matters to them.