面壁功深

Explanation: Facing the Wall: Buddhist term for the face of the wall Mozuo retreat. Monks retreat facing the wall, Daoxing deep. Metaphor of a person accomplished in a very deep respect. 　　Source: Puji Song Interpretation "Wu Deng Hui Yuan," Volume apartment beyond the Songshan Shaolin Temple, facing the wall and sit all day long silence, one Mo test, that the wall view of Brahman. "