六味丸加五味子三两，肉桂二两（补水宁神汤附内）
黑夜神光自现，此方主之。神光自现，本经曰电光夜照，盖龙雷之火上游故耳。急用前方加五味、肉桂。夫
五味虽各脏皆滋，究其功多专于肺，肺清则肾水随足。得桂内助，亦能引无根之火，降而归经，所谓热因热用，
从法之妙法。或者畏其辛酸，改用黄柏、知母，恐霹雳震裂，无物不坏。且
人身，小天地也。阴阳昼明夜晦，自然之理，今瞑黑远近见物，其背于天地何疑。有某患此，以为精华焕发，喜
而不寐。余语以病因，兼授治法。阳德之，阴晒为无用。比及日间不见，央人按方赎药，果无用矣。若心肾不交
而得斯症，须归、芍、生熟地黄、麦冬、五味、参、苓，滋阴养血，清火安神。所谓补水宁神汤也。大剂服五六
日，觉夜光稍熄，然后按脉而消息之。虽变昏惑妄见，可使收之桑榆。
诗曰∶补水全凭生熟地，宁神当简麦门冬，参苓白芍虽平淡，亦在酸咸五味中。
地黄（四两） 枣皮 山药（各三两） 茯苓 怀牛膝（各二两） 车前子（盐、酒炒） 泽泻 牡丹皮（各一两）
肉桂 附子（各一两五钱）
小便不利，腰重脚肿，或腹满肢体浮胀，喘急痰盛，此方主之。
《脉解篇》曰∶诸阳浮无所根据，故呕咳气喘。肾劳则皆难俯仰，小水不行。水不行，故肢体胀满。是方山药、
茯苓，甘淡者也，甘能制湿，淡能渗湿，足消其肿胀。泽泻、丹皮，咸寒者也，咸能润下，寒能胜热，足止其喘
咳。辛温从阳，附子、肉桂是也，用以服龙雷之火。濡润从阴，地黄、枣皮是也，用以壮天一之水。水盈火充，
则痰盛腰重之患，弹指如失。乃牛膝、车前子者，下行之品，湿热留中，腹满便秘，必假渠为决渎，使邪从溺出。
就症论药，功不在八味之下，故均曰肾气。
诗曰∶六味首善怀庆地，茯苓山药枣皮继，与夫泽泻牡
丹皮，阴虚火动治容易。七味加桂八味附，鹿茸五味凑十补。十补更除附与茸，本经仍旧吸都气。八味车前牛膝
增，丸名肾气藏金匮。
Liuwei Wan (Six-Ingredient Pill with Rehmanniae Radix) is modified by adding Sanliang (3 liang) of Wuweizi (Schisandrae Fructus) and Erliang (2 liang) of Rougui (Cinnamomi Cortex), which constitutes Bushui Ningshen Tang (Water-Nourishing Spirit-Calming Decoction, attached below).
This formula treats the symptom of "divine light appearing spontaneously at night." The appearance of divine light is referred to in the *Neijing* (Classic of Internal Medicine) as "night illumination like lightning," caused by the upward flaring of Longlei Huo (Dragon-Thunder Fire, referring to ministerial fire in the kidney). One should urgently use the aforementioned formula, adding Wuweizi and Rougui. Although Wuweizi nourishes all viscera, its efficacy is primarily focused on the Lung; when Lung Qi is clear, Kidney Water follows suit. Assisted internally by Rougui, it can guide rootless fire downward and return it to its meridian. This exemplifies the subtle art of "treating heat with heat" (using hot-natured herbs for heat syndromes), a profound method of contrary treatment. Some, fearing its acrid-warm and sour properties, substitute Huangbai (Phellodendri Cortex) and Zhimu (Anemarrhenae Rhizoma), fearing this would cause destruction like thunderbolts. Furthermore, the human body is a microcosm. Yin and Yang naturally manifest as bright during the day and dark during the night. To see objects clearly in darkness contradicts natural laws. A certain patient suffered from this, believing it was a manifestation of essence flourishing, and was so pleased that he could not sleep. I explained the etiology and prescribed treatment. He outwardly expressed gratitude but inwardly scoffed at its uselessness. When his vision did not improve during the day, he begged others to obtain the medicine according to the prescription, but it proved ineffective. If this syndrome arises from the failure of Heart and Kidney interaction, one must use Danggui (Angelicae Sinensis Radix), Shaoyao (Paeoniae Radix Alba), Sheng Dihuang (Rehmanniae Radix Preparata), Shu Dihuang (Rehmanniae Radix Praeparata), Maidong (Ophiopogonis Radix), Wuweizi, Renshen (Ginseng Radix), and Fuling (Poria), to nourish Yin and blood, clear fire, and calm the spirit. This is the Bushui Ningshen Tang. Administered in large doses for five to six days, if the nocturnal light subsides slightly, adjust the dosage based on pulse diagnosis. Even if the condition deteriorates into confusion and hallucinations, recovery is still possible.
Poem:
To nourish water, rely entirely on Sheng and Shu Dihuang;
To calm the spirit, select Maidong.
Although Renshen, Fuling, and Shaoyao are mild,
They are encompassed within the sour and salty nature of Wuweizi.
Ingredients: Dihuang 4 liang, Zaopi (Corni Fructus) and Shanyao (Dioscoreae Rhizoma) each 3 liang, Fuling and Huainiuxi (Achyranthis Bidentatae Radix) each 2 liang, Cheqianzi (Plantaginis Semen) stir-fried with salt and wine, Zexie (Alismatis Rhizoma) and Mudanpi (Moutan Cortex) each 1 liang, Rougui and Fuzi (Aconiti Lateralis Radix Praeparata) each 1.5 qian.
This formula treats difficulty in urination, heaviness in the lower back and edema of the feet, abdominal fullness, limb swelling, panting, and profuse phlegm.
The *Maijie Pian* (Chapter on Pulse Explanation) states: "When all Yang pulses float without foundation, vomiting, coughing, and panting occur." Ren Lao (Kidney exhaustion) makes bending and stretching difficult, and urine flow ceases. Since urine does not flow, limb distension results. In this formula, Shanyao and Fuling are sweet and bland; sweetness controls dampness, and blandness promotes diuresis, effectively reducing swelling. Zexie and Mudanpi are salty and cold; salinity moistens and directs downward, and coldness overcomes heat, effectively stopping panting and coughing. Acrid-warm herbs follow Yang; these are Fuzi and Rougui, used to subdue Dragon-Thunder Fire. Moistening-humidifying herbs follow Yin; these are Dihuang and Zaopi, used to strengthen Tianyi Zhi Shui (Primordial Water). When water is abundant and fire is contained, symptoms such as profuse phlegm and heavy waist vanish instantly. Niuxi and Cheqianzi are descending agents; if damp-heat lingers in the middle jiao causing abdominal fullness and constipation, they serve as the conduits (Juedu) to expel pathogens via urine. Analyzing herbs based on symptoms, their efficacy rivals the Eight-Ingredient Pill, hence both are named Shenqi (Kidney Qi).
Poem:
For Liuwei Wan, Huaiqing Dihuang is supreme;
Followed by Fuling, Shanyao, and Zaopi.
With Zexie and Mudanpi,
Treating Yin deficiency with hyperactive fire becomes easy.
Seven ingredients plus Rougui make Ba Wei; add Fuzi to eight.
Lu Rong (Cervi Cornus Pantotrichum) and Wuweizi complete the Ten Tonics.
Remove Fuzi and Lu Rong from Ten Tonics, and it reverts to the classic Xi Duqi formula.
Add Cheqianzi and Niuxi to the Eight Ingredients, named Shenqi Wan, stored in the *Jin Gui Yao Lue*.