“二”:是指心、身(性和命)两方面的修炼:心身一体,性命并重,是本法的核心思想。只重视身体锻炼,忽视精神意识修炼,不能从根本上去除致病之源,难以达到治病强身的目的。因为绝大多数疾病的产生都与内伤七情有直接关系。恶劣情绪是人类的“催命符”:长寿学者胡夫兰德指出“一切对人不利的影响中,最能使人短命夭亡的,就要算是不好的情绪和恶劣的心境”。 “Two”: refers to the heart, body (sexual and life) in two aspects of cultivation: integration of body and mind, both life and death, is the core idea of ​​this Law. Only emphasis on physical exercise, neglect spiritual cultivation practice, can not fundamentally remove the source of pathogenic, it is difficult to achieve the purpose of healing. Because the vast majority of diseases are directly related to the occurrence of internal injuries. Harsh emotions are the “reminder” of humankind: longevity scholar Hufulande pointed out that “all the adverse effects on human beings, the most short-lived death, it is bad mood and bad mood.”