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My father, Lord Shoufeng, was known in his youth and prime for his fondness of drinking. Later, when he reached his forties, alcohol-induced ailments arose, leading to a condition of phlegm-fluid retention (Tan Yin). Common manifestations included vomiting acid, abdominal distension and fullness, decreasing appetite, severe dizziness and weakness, palpitations with mental confusion, and various syndromes such as malaria, emerging successively. Various treatments for phlegm yielded no effect whatsoever. Admiring the efficacy of Zhang Hezi's emetic method, I followed and applied it. Initially, Du Sheng San (Single Holy Powder), Cha Tiao San (Tea Seasoning Powder), and vinegar juice were used. After one induction of vomiting, there was slight improvement; after the second, further improvement occurred, and this was repeated frequently. Although various phlegm pathogens gradually receded, the primordial Qi (Vital Energy) did not recover. This continued for over a year. Gradually becoming proficient, I suddenly comprehended the underlying principle and ceased using medicinal herbs entirely. Instead, just after food digestion at the Wu Geng period (5:00-7:00 AM), I would slowly swallow air, lifting it upwards by means of Qi movement. Within a few lifts, clear saliva would arrive first; upon further lifting, thick and turbid phlegm would follow. From then on, regardless of whether diseases were exterior or interior, excess or deficient, even if they manifested in hundreds of ways, I absolutely avoided taking medicine. A single application of the emetic method ensured complete resolution on the same day. Beyond the age of sixty, I performed this once every month or half-month without any reluctance. My hair turned white yet my face remained youthful and rosy, and my vigor increased daily.

At that time, I, Zhang Jiebin, was approaching adulthood and had begun to acquire knowledge. Fearing that vomiting might injure the body, I gently advised him, saying: "Emesis is originally intended to remove phlegm; can all diseases be treated by vomiting? Moreover, it is widely known that vomiting damages primordial Qi. How can one not worry about this in advanced years?" My father replied: "You know that vomiting treats phlegm. Do you know that vomiting can treat a hundred diseases? You know that vomiting can damage Qi. Do you also know that vomiting can generate Qi? I will explain this to you in detail." Among ancient sages, none excelled more than Zhang Hezi in treating phlegm accumulation using his "Three Methods," nor Zhu Danxi with his "Stomach Purging Method" (Dao Cang Fa). The Stomach Purging Method is difficult to practice and rarely dared to be used. Only Zhang Hezi's method is commonly used by people, yielding rapid and frequent results. However, my method differs. Zhang Hezi's emesis relies on medication. The medicines are necessarily bitter and harsh, the vomiting forceful and violent, proceeding beyond human control, inevitably causing injury. My emesis requires no medication. Phlegm moves with Qi, and Qi arrives due to phlegm. The speed is self-regulated, beneficial without harm. Zhang Hezi's method focuses on urgency, attacking only excess solid phlegm; my method focuses on slowness, thus capable of treating a hundred deficiencies.

The causes of the hundred diseases vary; why are they all suitable for emesis? When phlegm-saliva is abundant, blocking the stomach and obstructing the clear pathways, emesis is necessary. When accumulations cause acute pain and cannot be dispersed by other means, emesis is necessary. When phlegm is sticky, fixed, and turbid, indigestible by herbs, emesis is necessary. When phlegm resides in meridians, membranes, and hidden cavities, deeply stored and long accumulated, beyond the reach of drugs, emesis is necessary. These are easily understood by people. Furthermore, for external wind-cold invasion, emesis disperses it; for internal dietary injury, emesis clears it; for constrained fire, emesis vents the heat pathogen; for excessive cold, emesis stirs up Yang Qi; for sinking pathogens, emesis has a lifting function; for aggregated pathogens, emesis has a resolving power. Since most diseases stem from dysfunction in regulation and flow, emesis unblocks Qi. Once Qi flows smoothly, nothing remains unresolved, so what disease could persist? Therefore, for strange and refractory diseases where physicians exhaust their skills without success, only the emetic method reveals miraculous efficacy. This is rarely known by others.

Regarding the concept of "generating Qi," not only do people not know it, but they certainly do not believe it. Through my own vigorous practice and experience, I have grasped its subtlety. The mechanism of heaven and earth's ceaseless operation lies primarily in the ascending and descending of Qi. Ascending is based on Yang, the way of growth; descending is based on Yin, the way of decline. By utilizing Qi to leverage this ascending power, moving at varying speeds, I inhale and exhale natural vitality without cruelty or violence, fully harnessing the miraculous power of non-medication. Thus, after emesis, spiritual energy invariably doubles, as you have witnessed; Yang vitality invariably becomes robust, as I often verify. If emesis did not generate Qi, could such results occur? Daoists utilize the Du Mai (Governing Vessel); I utilize the Ren Mai (Conception Vessel). Though the methods differ, the destination is the same. It not only eliminates disease but also prolongs life. My words are not false; remember them well. I followed this teaching, practicing it regularly, achieving effects as responsive as echoes, though not as miraculous as my father's.

Recalling since the time of Xuanyuan (Yellow Emperor) and Qibo, only Zhang Hezi was adept at using emesis. Comparing my father's method with his, the differences in difficulty and superiority are like heaven and earth. Thus, the title of "the one man across the ages" should not belong to Zhang Hezi. If wise individuals share this insight, they will surely follow suit, benefiting future generations. I fear that in centuries to come, this transmitted secret method may be lost. Therefore, I record these teachings in detail as a memoir and list the specific methods below:

My father practiced emesis usually upon waking at Wu Geng. Lying supine, he induced belching to lift Qi. If Qi was insufficient, he swallowed air to induce belching, lifting continuously until phlegm-saliva arrived. Even the deepest phlegm could be extracted. The last portions expelled often had purple-black colors and foul, sour odors. After each session, lips might swell and throat hurt, relieved by rinsing and swallowing a mouthful of cool water. After emesis, breakfast consisted solely of bland congee (one or two bowls) to nourish the clear Qi of the stomach, avoiding all five flavors. From his forties onward, he abstained completely from alcohol. Practicing this for over forty years, he grew healthier with age, living past eighty, still able to climb mountains and copy ancient texts by lamplight. Eventually, free from illness, he passed away smiling while practicing Bigu (grain avoidance), at the age of eighty-two.