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When igniting the moxa cone for application, the patient should be instructed to locate the acupoint according to a specific method. At this time, the patient must sit upright with arms extended; the head, neck, shoulders, back, hands, feet, wrists, and knees must not tilt or deviate in the slightest degree, nor should they extend, retract, or change position arbitrarily.

When pressing on the middle of the arm, the pressure applied should remain uniform. If any part differs slightly from the previous state, the scapulae will draw closer together, causing the moxibustion point on the back to lie directly on the bone. Conversely, if the scapulae spread apart, moving more than one cun, the heat energy cannot enter the acupoint, resulting in suffering without benefit. If the acupoint is accurately located, after applying a certain number of moxa cones (Zhuang), one will feel heat penetrating through the area between the scapulae without severe pain, leading to a sense of mental comfort and relaxation. After dozens of Zhuang, there may be a sensation of soreness or tingling in the wrists, resembling the strain of supporting weight with branches. Placing soft cloth under the elbows and wrists and binding both arms together can provide appropriate support and assistance. This occurs because the hand presses down while the arm lifts, straining the wrist. A brief rest is harmless, provided that the body and limbs are positioned as before. Applying fifty Zhuang per day, accumulating to several hundred, is considered ideal. The *Qianjin Fang* records: upon reaching six hundred or even one thousand Zhuang, one should feel Qi descending with a rumbling sound, like flowing water, accompanied by excretion. The therapeutic efficacy for various diseases is numerous and rapid (e.g., symptoms of upper Qi rebellion and wheezing subside immediately; women with amenorrhea lasting eight months resumed menstruation after two days of treatment; such cases are numerous). This acupoint, located in the upper body, is particularly effective in directing Qi downward, surpassing other acupoints and medicinal herbs, and is capable of treating almost all ailments. Patients should pay close attention to it.

Shi Cangyong, courtesy name Yongzhi, was a prominent physician in the capital. His treatment methods strictly followed ancient practices, and he frequently performed moxibustion on this acupoint for others. His method for locating the acupoint involves having the patient sit upright with crossed legs on a bed or couch. Depending on the patient's size and build, a basket-like object (Kaolao) or a bolster pillow is placed and wrapped in quilts or cotton padding. The patient then crosses their arms and rests them flat on top. The remainder of the procedure remains consistent with previous descriptions, adhering to the intent in the *Qianjin Fang* regarding the inability to sit for long periods with arms extended resting on fabric. Shi used hard objects because he believed that fixed dimensions were superior to fabric. However, the extension and flexion of the arms differ from ancient methods. Nevertheless, the therapeutic effects are equally effective. Essentially, medical practice relies on the practitioner's insight, allowing for adjustments based on circumstances, without rigid formulas. Sun Simiao mocked Qin Huan (Bian Que) for being inept at finding this acupoint, knowing only the limitations of acupuncture and herbs but unaware of the penetrating power of fire therapy. Pursuing such refined techniques is not excessive.

In the Jiwei year of the Shaoxing era, while I was guarding Wuchang, Shao Yuyun, a Ministry of Revenue official, who had suffered from consumption (Phthisis) since youth, was treated by a monk from Quanzhou. The monk performed moxibustion on the Gohuang acupoint. The patient was instructed to lie prone on a Kaolao. The monk pressed firmly with his finger joints to locate the acupoint, instructing the patient to identify the correct spot when numbness was felt in the middle finger. If there was no numbness, or if the numbness was not in the middle finger, the location was incorrect. Upon correctly locating the acupoint, a single session of moxibustion resulted in a cure. This account was added in the fourth month of the Renxu year.