Mu Guiyuan, also known as Dai Emperor, was a Chinese poet from the Song Dynasty. One of his poems describes a scene where he is teaching a lesson to a submissive person through physical punishment. In this poem, Mu Guiyuan reflects on the relationship between him and his subordinate. He uses the metaphor of "foot slave" to describe their dynamic, with him holding power over them and them submitting to his will. Mu Guiyuan explains that he punishes the submissive person by hitting them across the face with an open hand, a form of discipline known as "slapping". He describes how this causes their face to turn red, showing both pain and submission. Despite the pain inflicted upon them, Mu Guiyuan sees their submission as a positive outcome. The fact that they continue to serve him despite the punishment demonstrates their loyalty and dedication. This is what he calls "cultivating" their submissive nature, teaching them to accept his dominance and authority. Mu Guiyuan's poem reflects on the dynamics of power between individuals in relationships. It shows how one person can use physical punishment to assert control over another and shape their behavior through submission.