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A patient suffered from coughing and hemoptysis. I palpated his pulse, which was rapid and forceful, but specifically, the spleen pulse was surging (Hong), full, and tight. This was caused by consuming fried foods and rich, strong flavors, indicating fire in the Spleen and Stomach meridians. I prescribed Chenpi (Tangerine Peel), Baizhi (Angelicae Dahuricae Radix), Danggui (Angelicae Sinensis Radix), Shengdihuang (Rehmanniae Radix), Jiegeng (Platycodonis Radix), Gancao (Glycyrrhizae Radix et Rhizoma), Baishao (Paeoniae Radix Alba), Huangqin (Scutellariae Radix), Beimu (Fritillariae Bulbus), Tianhuafen (Trichosanthis Radix), Baifuling (Poria), Zhimu (Anemarrhenae Rhizoma), and Huangbai (Phellodendri Cortex). After taking dozens of doses, he recovered.

A farmer, due to overexertion in saving against drought, suddenly began profuse hemoptysis. Physicians treated it as a Fire disease, but with no effect. He sought my help. I administered Buzhong Yiqi Tang (Tonifying the Middle and Augmenting Qi Decoction) for several doses, and he recovered. This aligns with the principle in *Huangdi Neijing* (The Yellow Emperor's Inner Canon): "For exhaustion, use warm methods" (Lao zhe wen zhi).

An elderly man suffered from continuous lower gastrointestinal bleeding. Medications for stopping bleeding were ineffective. I modified Siwu Tang (Four Substances Decoction) by adding Mudanpi (Moutan Cortex) and Baizhu (Atractylodis Macrocephalae Rhizoma), regulating the Spleen's qi, and he recovered.

Sweat is the fluid of the Heart. If not induced by extreme heat or overexertion, its occurrence is pathological. The causes are varied: some result from exposure to wind, rain, and damp pathogens, where steaming and stagnation disrupt the harmony between Ying (Nutrient) and Wei (Defensive) qi, causing the couli (pores) to open and sweat to flow continuously. This is caused by external pathogens; only by thoroughly eliminating the pathogen will the sweating stop. If sweating results from internal injury, it is either due to Ying deficiency or Wei weakness. Why? When Yin invades the Yang aspect, spontaneous sweating occurs naturally; the treatment method should harmonize Ying to benefit Wei. When Yang invades the Yin aspect, sweating occurs during sleep, known as night sweating; the treatment method should nourish Yin to suppress Yang. If the disease has persisted for a long time, leading to muscle wasting and emaciation, with daytime spontaneous sweating and nighttime night sweating, this belongs to both Yin and Yang deficiency; the treatment method should tonify both Qi and Blood. Generally, the pulse for spontaneous sweating must be faint and weak, while the pulse for night sweating must be fine and choppy. A faint pulse indicates decline of Yang qi, and a fine pulse indicates weakness of Yin qi. Does Wang Shi's discussion deceive us? In summary, spontaneous and night sweating are the beginnings of fluid depletion and essence loss. Whenever these syndromes appear, one must be vigilant and treat them, not regarding them as ordinary cases.

The Sages said: "Sweat is the fluid of the Heart," meaning the Heart governs this fluid, just as the Spleen governs saliva, the Lungs govern nasal mucus, and the Liver governs tears; it is not the true fluid of the Heart orifice. Essentially, clear fluids derived from food and drink are distributed by the Spleen's essence, ascending to the Lungs, and disseminated throughout the body. All five Zang and six Fu organs, four limbs, and hundred bones rely on this for nourishment; humans cannot survive a day without it. It is like water moistening soil: excessive moisture causes soaking, dryness causes withering; when dryness and moisture are balanced, all things grow. However, for this fluid to become sweat, it must be urged and generated by Yang qi. Consider winemaking: using yeast and grains, covered and moistened, placed in a steamer, with water added to the pot below and heated by fire, the liquid vapor rises to become wine. The principle of making wine is analogous to producing sweat; they fit together perfectly like matching tally sticks. Is there anything strange about this? Since both are sweat, why is there a distinction between spontaneous and night sweating? What is the difference in the principle that "when Yang is deficient, Yin must encroach"? When Yin invades the Yang aspect, Ying qi does not harmonize with Wei qi. Yang is active; because there is stillness within activity, sweating occurs while awake, termed spontaneous sweating. The treatment method should tonify Yang to nourish Yin. Tonifying Yang involves herbs like Renshen (Ginseng Radix et Rhizoma) and Huangqi (Astragali Radix). Nourishing Yin involves Danggui (Angelicae Sinensis Radix) and Dihuang (Rehmanniae Radix). When Yin is deficient, Yang must invade; when Yang invades the Yin aspect, Wei qi does not harmonize with Ying qi. Yin is static; because there is activity within stillness, sweating occurs during sleep, termed night sweating. Like a thief sneaking out, it stops upon waking. The treatment method should tonify Yin to suppress Yang. Tonifying Yin refers to Siwu Tang (Four Substances Decoction). Suppressing Yang refers to Sanhuang (the three yellows: Huanglian, Huangqin, Huangbai). As for those who have spontaneous sweating by day and night sweating by night, this is indeed Yin and Yang dual deficiency. However, at this stage, physicians are often impotent. Why? Wei qi travels through Yang during the day and Yin at night; traveling through Yang leads to wakefulness, traveling through Yin leads to sleep. Now, sweating occurs in both wakefulness and sleep, indicating that Yang activity has reached its extreme and Yin stillness reacts oppositely. Ultimately, Yin qi has failed, and the slight Yang qi is also floating and escaping. At this moment, if we tonify Yang, the Yin fire will become more blazing due to the tonification; if we attempt to nourish Yin, the weak Yang cannot generate Yin. In such a situation, only if the pulse is large, deficient, slow, and not rapid can we conclude that Yin is not severely deficient and Stomach qi remains. Using either method might offer a slim hope. Conversely, if the pulse is fine, rapid, and forceless, it indicates failure of Yin and collapse of Yang. Even if Cang Gong or Bian Que were resurrected, what could they do?