The Four Graces and the Four Essentials are the Essential Ways of Human Life; the Threefold Learnings, and the Eight Articles are the Essential Ways of Training. One would be unable to follow the Essential Ways of Human Life but for the Essential Ways of Training; one would be unable to give evidence of the effects from practicing the Essential Ways of Training without the Essential Ways of Human Life. The Essential Ways of Training can be likened to the medical art with which a doctor cures patients and the Essential Ways of Human Life, to the medicines used to cure patients.