（《纲目》）
【集解】时珍曰∶一年二十四节气，一节主半月，水之气味，随之变迁，此乃天地之气
候相感，又非疆域之限也。《月令通纂》云∶正月初一至十二日止，一日主一月。每旦以瓦
瓶秤水，视其轻重，重则雨多，轻则雨少。观此，虽一日之内，尚且不同，况一月乎。立春、
清明二节贮水，谓之神水。
【主治】宜浸造诸风脾胃虚损诸丹丸散及药酒，久留不坏。
寒露、冬至、小寒、大寒四节，及腊日水。
【主治】宜浸造滋补五脏及痰火、积聚、虫毒诸丹丸，并煮酿药酒，与雪水同功。
立秋日五更井华水
【主治】长幼各饮一杯，能却疟痢百病。
重午日午时水
【主治】宜造疟痢疮疡金疮、百虫蛊毒诸丹丸。
小满、芒种、白露三节内水
【主治】并有毒。造药，酿酒、醋一应食物，皆易败坏。人饮之，亦生脾胃疾（并时珍）。
（《拾遗》）
【释名】甘泉。
时珍曰∶醴，薄酒也，泉味如之，故名。出无常处，王者德至渊泉，时代升平，则醴泉
出，可以养老。《瑞应图》云∶醴泉，水之精也，味甘如醴，流之所及，草木皆茂；饮之令
人多寿。《东观记》云∶光武中元元年，醴泉出京师，人饮之者，痼疾皆除。
【气味】甘，平，无毒。
【主治】心腹痛，疰忤鬼气邪秽之属，并就泉空腹饮之。又止热消渴及反胃霍乱为上，
亦以新汲者为佳（藏器）。
（《本草纲目》）
【集解】李时珍说：一年有二十四个节气，每个节气主管半个月，水的性质和味道随之发生变化，这是天地气候相互感应的结果，并非受地域疆界的限制。《月令通纂》记载：正月初一到十二日，每一天对应一个月。每天早晨用瓦瓶称量水，观察其轻重，水重则雨水多，水轻则雨水少。由此看来，即便是一天之内，水的性质尚且不同，何况是一个月呢？立春、清明两个节气储存的水，被称为神水。
【主治】适宜浸泡制作治疗各种风邪及脾胃虚损的丹丸散剂以及药酒，长期存放不会变质。
寒露、冬至、小寒、大寒四个节气的水，以及腊月（农历十二月）的水。
【主治】适宜浸泡制作滋补五脏以及治疗痰火、积聚、虫毒等的丹丸，并用于煮制酿造药酒，功效与雪水相同。
立秋日黎明时分汲取的第一井水（井华水）。
【主治】无论老少各饮一杯，能够预防疟疾、痢疾及百种疾病。
端午节正午时分汲取的水。
【主治】适宜制作治疗疟疾、痢疾、疮疡、金创（金属利器造成的创伤）、百虫蛊毒等的丹丸。
小满、芒种、白露三个节气内的水。
【主治】都有毒性。用来制药、酿酒、酿醋或制作任何食物，都容易腐败变质。人饮用后，也会引发脾胃疾病（以上均为李时珍所言）。
（《本草拾遗》）
【释名】甘泉。
李时珍说：醴，指味薄的甜酒，泉水的味道像它一样，所以得名。醴泉没有固定的出处，当君王的德行深厚直达深渊，时代升平太平时，醴泉就会涌出，可以用来供养老人。《瑞应图》记载：醴泉是水的精华，味道甘甜如酒，流经之处，草木都茂盛；饮用它能让人长寿。《东观汉记》记载：光武帝中元元年，京师出现醴泉，人们饮用后，顽固的疾病都消除了。
【气味】味甘，性平，无毒。
【主治】心腹疼痛、注忤鬼气邪秽等病症，应当面对泉水空腹饮用。另外，对于热病消渴以及反胃霍乱，以新汲取的泉水为最佳（引自陈藏器）。
(From *Bencao Gangmu* / Compendium of Materia Medica)
[Collected Explanations] Li Shizhen stated: There are twenty-four solar terms in a year, each governing half a month. The nature and flavor of water change accordingly; this is due to the mutual resonance between Heaven and Earth's climatic conditions, not limited by geographical boundaries. *Yueling Tongzuan* records: From the first to the twelfth day of the first lunar month, each day corresponds to one month. Each morning, weigh water using a clay bottle; if heavy, there will be abundant rain; if light, little rain. Thus, even within a single day, differences exist, let alone across a month. Water stored during the Lichun (Start of Spring) and Qingming (Clear and Bright) solar terms is called "Divine Water."
[Therapeutic Functions] Suitable for soaking and preparing pills, powders, and medicinal wines for treating various wind-pathogens and spleen-stomach deficiency injuries; it remains unspoiled over long periods.
Water from the Hanlu (Cold Dew), Dongzhi (Winter Solstice), Xiaohan (Minor Cold), and Dahan (Major Cold) solar terms, as well as water from La Yue (the twelfth lunar month).
[Therapeutic Functions] Suitable for soaking and preparing pills that tonify the five Zang organs and treat phlegm-fire, accumulations, and insect/toxin poisons; also used for brewing medicinal wines. Its efficacy is equivalent to that of snow water.
Well water drawn at dawn on the day of Liqiu (Start of Autumn), known as Jinghua Water (First Well Water).
[Therapeutic Functions] Drinking one cup regardless of age can prevent malaria, dysentery, and myriad diseases.
Water drawn at noon on the day of Wuduan (Dragon Boat Festival).
[Therapeutic Functions] Suitable for preparing pills for treating malaria, dysentery, sores, ulcers, metal wounds, and various insect/bewitchment toxins.
Water collected during the Xiaoman (Grain Buds), Mangzhong (Grain in Ear), and Bailu (White Dew) solar terms.
[Therapeutic Functions] All possess toxicity. Used for making medicines, brewing wine, vinegar, or any food, they spoil easily. Human consumption induces spleen and stomach disorders (All above noted by Li Shizhen).
(From *Bencao Shiyi* / Supplement to Materia Medica)
[Names] Ganquan (Sweet Spring).
Li Shizhen stated: "Li" refers to thin sweet wine; the spring tastes like it, hence the name. It has no fixed source. When a ruler's virtue reaches deep springs and the era is peaceful, Ganquan emerges, suitable for nourishing the elderly. *Ruiying Tu* records: Ganquan is the essence of water, sweet as wine; where it flows, grasses and trees flourish; drinking it prolongs life. *Dongguan Ji* records: In the first year of Zhongyuan under Emperor Guangwu, Ganquan appeared in the capital; those who drank it were cured of chronic ailments.
[Flavor and Nature] Sweet, neutral, non-toxic.
[Therapeutic Functions] For heart and abdominal pain, Zhuwu (infectious disease with wandering pathogen), ghostly qi, and evil turbidity, drink facing the spring on an empty stomach. Furthermore, it is superior for treating heat-induced thirst (Xiaoke) and regurgitation/vomiting-dysentery (Fanwei Huoluan); newly drawn water is best (Cited from Chen Cangqi).