From below, the distance between cliffs looks so narrow as to admit only a thin line of light, and thus the nickname, "The Thread of Light."
抬頭一望，天空在二側岩壁夾峙下，形成了「一線天」。儘管谷底得不到陽光的眷愛，偶爾還會從上方濺落水滴，使谷中泛著森冷的「地獄」氣氛；但壁石上的小草逆著光，生意盎然。