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The character "Yi" (Medicine) implies "Yi" (Intention/Mindful comprehension). The prescriptions of Yu Fu and Bian Que, and the techniques of He Huan (Bian Que), are consistent with the principles of state governance, and their merit lies in saving lives. Though these words are brief, they can illustrate great truths.

Mr. Huang of Tui'an, cultivates life through the Daoist ideal of Xuanyi (emptiness and tranquility), clarifies his will through indifference to fame and wealth, advances his learning to the level of Dao, and perfects his art to the level of spirit. He resides near Dahuan Juquan and practices medicine beside Xiaoyin Jujing. Regarding the records of Yan Di's hundred herbs and the texts on the six roots in the *Huangting Jing*, whether exploring the wonders of the pot history as Kang Bo did in the marketplace, or measuring the essentials as Bian Que did with his mirror classics, he extracts the essence from the *Lingshu* and *Suwen*, penetrates the mysteries of the spirit, thereby rescuing critical conditions of the Gao-Huang (deep-seated disease areas), and understanding the intricacies of the Couli (interstitial spaces). Both excellent physicians and capable ministers are found herein. Please inscribe this at the beginning of the book as a prologue.

In the second month of spring in the Ji Xu year, Liu Siwan, a humble nephew from Yanghu, bows and writes.

I was prone to illness in my youth. At nineteen, when my father passed away, I abandoned the pursuit of imperial examinations and began to study Qihuang (Traditional Chinese Medicine). I often lamented that those ignorant people in the world either nurture villains and thieves or punish the innocent, so I resolved to become a physician. When encountering difficult cases, I would search through medical treatises until late at night, watching candles burn down to their bases without feeling tired, only stopping once I grasped the essentials. By tracing back to the origins, I gradually gained insights. Initially, when my mother was old and unwell, I selected appropriate herbs for her treatment, which proved effective, bringing me great joy. For family members who fell ill, my prescriptions also often led to rapid recovery. People from far and near came to seek treatment, day after day, without fail. Accumulating nearly forty years since then, although my knowledge is partial, I am confident it does not harm patients, and thus I composed six volumes of medical anecdotes. Since everyone considers health preservation (Shengyang) as the primary concern, I first compiled *Yilan Yanling* (Extending Life at a Glance), one volume. Collecting my lifelong observations to benefit learners, I wrote *Jupang Zalan* (Miscellaneous Discussions by the Orange Well), two volumes. The *Lingshu*, *Suwen*, and *Nanjing* are the foundations of medicine, but their profound meanings are hard to exhaust without years of study. Now, using a method of quick acquisition, I have compiled common symptoms of the five Zang organs and the appropriateness of tonifying or reducing methods, allowing one to grasp the general idea, forming *Shangchi Juandi* (Drops from Shangchi), one volume. It is said: Empty words do not help; one must see practical results. I recorded occasional excerpts from the *Zhouhou Beiji Fang* (Handbook of Prescriptions for Emergencies), two volumes. The methods for treating diseases were fully established by predecessors, yet the details are complex and difficult to address hastily. Now, using short chapters to encompass the subject, pointing directly to the source and flow, and attaching herbal indications, I wrote *Zhengzhi Zhiyao* (Essentials of Diagnosis and Treatment), one volume. The *Yaolong Duanju* (Short Dramas in the Medicine Cabinet), one volume, occasionally presents new ideas, not just being concise in language but truly practical. Those who understand me will surely not think my work is fit only to cover pots; those who do not understand me may ridicule it as they please. Previously, I published ten volumes of the *Youyu Zhai Poetry Collection*; now I publish eight volumes of medical anecdotes. The name of the studio remains unchanged.

Recorded by myself, Huang Kaijun, Layman of Tui'an, on the Flower Festival (Huazhao) of Ren Shen year, the 17th year of the Jiaqing reign.