This line is the book’s quiet thesis about research writing: the question is not just a starting prompt; it’s the organizing principle. Read “inform” as constrain and shape. If a subsection, paragraph, or citation doesn’t help answer the question you’ve posed, it’s ornamental—cut it. Practically, this means (1) operationalizing your terms (What exactly counts as “psychological well-being”? Which population, time frame, and context?), (2) reverse-outlining your draft to check that every section maps to a sub-task of the question (define, contextualize, test, interpret), and (3) applying a ruthless relevance test to sources: each should either supply evidence, methods, or counter-arguments that bear directly on the claim your question implies. This alignment prevents the two most common failures in student research: the “data dump” (too many unfocused sources) and the “tour” (interesting but aimless background). A strong question automatically yields a coherent structure because it dictates what must be established, measured, compared, or explained—and in what order. Quick check: write your research question atop your draft; under every paragraph, jot the specific part of the question it answers. Anything blank signals a tangent.