Top-right is 㐱, an obscure component meaning thick hair or fine streaks. It supplies the sound — zhěn drifting to chèn, regular alternation between zh/ch initials. Same phonetic in
诊 to diagnose,
珍 precious,
疹 rash. Here motion plus 㐱 yields 'to chase the right pattern of moments' — to take advantage of a chance.