Hemingway isn't simply urging confession or emotional honesty—he's insisting that pain becomes *intelligible* only through the discipline of clear prose. The temptation when we hurt is to either hide it entirely or to wallow in vague, self-pitying language; he demands we do neither, but instead meet our suffering with the same rigor we'd apply to describing a landscape. A therapist might say "talk about your feelings," but Hemingway knows that writing "hard and clear" forces you to *understand* what you're actually feeling, not just experience it. When someone sits down to write a letter of apology after a betrayal, for instance, the act of finding precise words—not flowery ones, not evasive ones—often reveals truths they didn't know they knew.