专心
zhuānxīn · HSK 4
to focus one's attention; to concentrate on (doing sth)
🎯 专心 = focus/concentrate + heart/mind
专 means concentrated or specialized; 心 means heart or mind. Together: a concentrated mind, i.e. focused attention. The English glosses (immerge, pore, zoom in) all point at giving something your undivided attention.
心 — pictograph of a heart with chambers and aorta
心 is a pictograph showing a stylized heart, with strokes representing the organ's chambers and the aorta at the top. Originally meaning the physical heart, it broadened to cover mind, feelings, and intentions, since ancient Chinese thought located thinking and emotion in the heart.