The word 全神贯注 is formed by combining the characters 全 (whole), 神 (spirit), 贯 (to pierce through), and 注 (to pour); the first two characters 全神 mean "entire spirit", and the last two 贯注 mean "to pour into", so the phrase literally expresses the idea of having one's complete spiritual attention focused as if being channeled into a single point, resulting in the meaning of total concentration.