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The Hui-Coupling point of the Fu organs is Zhongwan (CV12); the Hui-Coupling point of the Zang organs is Zhangmen (LR13); the Hui-Coupling point of the sinews is Yanglingquan (GB34); the Hui-Coupling point of the marrow is Juegu (GB39, also known as Xuanzhong); the Hui-Coupling point of the blood is Geshu (BL17); the Hui-Coupling point of the bones is Dazhu (BL11); the Hui-Coupling point of the vessels is Taiyuan (LU9); the Hui-Coupling point of the Qi is Danzhong (CV17).

The *Nan Jing* (Classic of Difficult Issues) states: For heat diseases located internally, select the Qi-acupoints of the Hui-Coupling points.

To treat carbuncles, ulcers, malignant sores, and back abscesses: For males, use the left side; for females, the right side. Starting from the transverse crease in the middle of the wrist, use a thin bamboo strip to measure up to the point where the flesh ends at the base of the middle finger, excluding the nail. This method was proposed by Xu Kang. During measurement, the feet should be lifted off the ground by approximately five cun. Two assistants should hold the subject steady on both sides to prevent any shaking or instability. Then, take the measured long bamboo strip, press it vertically against a bamboo pole starting from the coccyx, and measure along the spine to the end of the strip. Mark this position with a pen. This marked position is not an acupoint. Next, use a bamboo strip designated for measuring "same-body cun" (proportional cun). Take a two-cun length, fold it in half flat. From the center, measure one cun towards each end. These are the moxibustion points. One may apply three moxa cones (zhuang) at each point.

According to this method, the determined points are located outside the Zhizhong (GV14) and Jinshu (GV12) acupoints on the Du Meridian (Governing Vessel) in the midline of the spine, and inside the Geshu (BL17) and Ganshu (BL18) acupoints on the second line of the Bladder Meridian running along the back. They are not standard, orthodox acupoints.

Cui Zhiti stated: To treat bone-steaming consumption fever, moxa the Four Flowers acupoints. Use the core of a rice straw to measure the width of the mouth opening. Cut the straw to match this width. Using this length as the radius, cut four pieces of paper. Arrange them in a ring around the laryngeal prominence (Adam's apple), hanging downwards towards the back. Observe where the rice straw stops. Place the center of the previously made small-hole paper at this location. Divide the paper into four corners for moxibustion. Apply seven moxa cones at each corner. Initially, there was doubt regarding the Four Flowers acupoints. The ancients likely established this expedient method because they feared people would not know how to locate acupoints accurately. It must correspond to the Shu-points of the Five Zang organs. Following this method to mark the points indeed aligns with the flourishing Qi, thus this method is adopted for tonification. The Gallbladder is the mansion of the Liver and stores blood; therefore, the Gallsbladder Shu-point is also selected. Cui only mentioned the Four Flowers but did not explicitly name the Geshu and Danshu acupoints; this omission serves as a warning to incompetent practitioners. Currently, based on palpating the spinal vertebrae, Geshu and Danshu are considered correct. However, since individuals vary in mouth size and width, the positioning of the Four Flowers acupoints is not precise.