The word 专注 is formed by combining two conceptual images: 专 (zhuān), which conveys the idea of concentrating exclusively on one thing or specializing in a single area, and 注 (zhù), which carries the meaning of pouring or directing a flow, as one would pour liquid into a vessel. Together, they create a powerful compound idea of directing and channeling all of one's mental and attentive resources into a single point, like a focused beam or a steady stream, thereby embodying the state of deep concentration and undivided attention.