《黄帝内经·素问·六元正纪大论》
应根据年运与岁气的同异，而制定用多或用少，年运与司天之气同为热者用寒凉之品以化之；若年运与在泉之气同为凉者，用温热之品以化之。
适气同异而多少之，同天气者以寒清化，同地气者以温热化。
Formula should be developed based on the difference and similarity of the annual fortune and the annual Qi. If the annual fortune and the Qie of the emperor are both hot, then the application of cold treatment will be given to transform them; if the annual fortune and the Qi of the spring are both cold, then the application of warm treatment will be given to transform them.