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At the age of thirteen, I lost my father. My mother loved me by emphasizing education, yet by the time I passed forty, I had achieved nothing. I believed that the medicinal knowledge at my parents' knees was sufficient to fulfill my filial duties for this life, but suddenly I embraced the eternal regret of losing them; my tears dried up, yet the pain remained unceasing. I once attempted to treat Mother Chen, who had long suffered from head wind disease (toufeng), attacking more than ten times a year. Each attack was accompanied by vomiting phlegm and dizziness. Thus, I obtained the Wuxin Tea prescription (Wuxin Cha) from Uncle Muzhai, a Fugan official. Consequently, the frequency of attacks decreased slightly, and even when they occurred, recovery was easier. Recently, Chuanwu (Radix Aconiti Lateralis Preparata) and Fuzi (Radix Aconiti Lateralis Preparata) have been difficult to obtain. Whenever I heard of someone traveling to the capital, buying Chuanwu was always my priority. Even on other trips, I would pre-prepare several doses for use. In previous years, sometimes I suffered from nasal congestion, or weak spleen with loss of taste. Examining the condition and adjusting the formula, I stored materials and compounded agents, making either pills or powders, conceived in the morning and completed in the evening, never daring to seek them in markets. The head wind disease did not recur for over a year. Furthermore, my diet suddenly increased, though I only felt slight weakness in my legs. On New Year's Day, I usually ate vegetarian food at home; if eating rice, I would finish a bowl of soup, which was also praised as delicious. Juqing privately told my mother, "You are seventy this year, yet your stomach organ functions so well; how can there be doubt about your longevity?" Eight days later, a small red millet-grain-sized swelling appeared beside the right ear. The next day, the right cheek and right eye were quite swollen. I summoned a doctor to examine her. Medicinal applications were used, and pus/toxins gradually emerged. The doctor said it could slowly subside. Being overly cautious, we strictly guarded the head and face, adhering to the saying that acupuncture and moxibustion should not be applied recklessly. Someone suggested moxibustion below the Zusanli point (ST36) to draw out the toxin, but the doctor insisted against it. Soon after, the swelling became harder, resembling a boil but with a large root, named a boil (jie) but lacking pus, external heat absent and internal pain nonexistent. Only after ten days did the condition become critically distressing. My mother arrived and said to Juqing, "You copy prescriptions and favor medicines, why do you not understand? In this panic, we knew not what to do. Other doctors also claimed no strategy." Mother's consciousness remained clear, yet she could not be saved. Days and months do not wait; soon came the period of mourning. A guest brought to show me the Shu edition of *Jiu Jing* (Classic of Moxibustion) and the Zhuma Moxibustion method, detailing their verified efficacy. It was known that internal temporal carbuncles and ding sores all had moxibustion treatments, and the Zhuma method cured all conditions without exception. Alas, alas! How could I lament in vain? Juqing often worried about wind in the head and eyes, still thinking that if an elder had hidden ailments, it might prolong life. Fortunately, the head wind had recovered, yet who would suspect that a critical condition would secretly erupt? Joy lasted briefly, followed by boundless pain. This is why I beat my chest and vomited blood looking at the sky. Since this prescription exists in the world, if I had seen it earlier, my mother would still be alive, yet the prescription remains. If the prescription remains, future generations may see it early. Perhaps although my mother could not be saved, others can be. Therefore, I published the Wuxin Tea prescription together to transmit it. My mother was from the Bo Gu Shi family of Shanyin.
On the first day of the fifth month of the Yisi year of Chunyou, Sun Juqing, the solitary scholar and provincial recommended jinshi, wrote the preface.