Sun Guangrong,a national Chinese medicine master,has been digging into the health preserving field for decades.Through his understanding of classics and personal practice,he has summarized a set of unique health preserving theories.Based on the principle of Master Sun's concise poetry for nourishing the heart,this paper uses the method of literature comparison to dig out the mysterious meaning and specific methods of nourishing the heart.It is concluded that the main contents of his way of cultivating the mind include cultivating morality first,nourishing the heart as a main consideration,lovi...