There's a period of life when we swallow a knowledge of ourselves and it becomes either good or sour inside.

Bailey’s line frames self-knowledge as something we “swallow”—an inward, irreversible act rather than a purely intellectual insight. In adolescence or early adulthood especially, people often confront truths about temperament, limits, desires, or wounds that cannot be unseen. Once internalized, that knowledge can “become either good or sour”: it may mature into acceptance, humility, and purposeful change, or it may ferment into shame, bitterness, and self-defeating narratives. The quote suggests that the decisive factor is not whether we discover ourselves, but how we metabolize what we discover—whether we integrate it into a workable identity or let it corrode from within.