https://mp.weixin.qq.com/s/A4PeQB2Vq1CW8xtc-5KQOA
Welcome everyone to share your own experiences with the medicines in the replies, to facilitate other students in searching and learning.

349. Yuan Zhi (Polygala Root)
The entry is sweet, and just before swallowing, a sour and numbing taste spreads in the back of the oral cavity, with a prickling sensation in the throat.
After swallowing, the energy in the middle burner splits into two flows: the first flows to the dantian and kidneys (mainly the right kidney); about one minute later, the second flow gathers to the heart, with some dispersing to the left lung and the left side of the right lung.
Effects: Tonifies the kidney and nourishes the heart, calms the spirit and stabilizes the mind, benefits lung qi.
350. Shi Jue Ming (Haliotis Discus Hannai Shell)
Quite fishy.
After swallowing, the qi of the upper burner is pressed down to both livers, mainly the right liver, and slowly returns to the dantian. Phlegm in the throat is softened and can be easily coughed out. There is a slight numbness under the jaw, which combines the effects of Walengzi (Alisma orientale) and oyster shell; salty and moistening, dissipating phlegm and resolving nodules.
Effects: Calms the liver and subdues yang, transforms phlegm and dissipates nodules.
Note: To deal with such a fishy odor, it is especially necessary to use the method of forgetting feelings, shutting down the taste function, letting the original bodily sensations rise from the subconsciousness to conscious awareness.
351. Zhen Zhu Mu (Mother of Pearl)
The taste is much better than Shi Jue Ming; the entry is sweet with a slight fishy taste.
After swallowing, the effect of calming the liver and subduing yang is weaker than Shi Jue Ming. Additionally, some qi gathers in the heart, exerting a calming effect and aiding sleep. Furthermore, its phlegm-transforming effect is also very good, with basically no nodule-dispersing effect.
Effects: Calms the spirit and aids sleep, calms the liver and subdues yang, transforms phlegm.
That day a student asked, from the perspective of extracting qi, which medicines are suitable for long decoction. Here is a brief explanation: the action of Chinese medicine in the human body mainly falls into two situations: “using taste to guide qi” and “using qi to guide qi”. Medicines like Shi Jue Ming and Zhen Zhu Mu are basically “using taste to guide qi”, while Long Gu (Dragon Bone) is both. When extracting the effect of “using qi to guide qi”, it should not be boiled vigorously; when extracting the effect of “using taste to guide qi”, it can be decocted first or patients can use a thermos cup to separately soak 2-3 cups and drink them individually, thus “getting all the effects”.