救生苦海∶有取神火法；用劈砂一斤，带水研细，以滚水冲之，面上有浮起细沫一层，
用荆
川纸拖水面，其沫即粘着纸上，将纸晒干扫下，即神火也。其砂澄清去水，再研再冲，见有
浮起沫，依前法拖晒，如此六七次，直至无浮沫方止，每砂一斤，约可取神火八九分，用乌
金纸包收贮。
性能拔毒收口，凡痈疽毒疮难收口者，以神火少许，鹅翎蘸扫膏药上贴，毒水易干，疮
口易
敛，为外科圣药。
乃千年塔顶锻石也。濒湖锻石条下，附古墓中锻石，名地龙骨， 舡油锻石，名水龙骨，
而
独遗此，特补之。盛再华云∶塔上锻石，受天阳风露之气，变悍烈之性而成温和，故能定痛
生肌，止血去湿，为金刃要药，内服亦良。
外治止血生肌，涂恶疮肿毒，寒湿 疮。内治心腹痛，乌痧胀。妇人血崩漏带。男子久痢便
血。及一切打扑损伤，恶血凝聚，腹痛欲死者，俱可服。
白虎丸∶治一切青筋腹痛。万氏家抄∶天龙骨不拘多少，去泥土，水飞过，凡似桐子大，
每
服五十丸，看轻重加减，烧酒下。初觉头痛恶心腹胀，即进一服，当时血散，若过三五日，
青筋已老者，多服取效。
本经逢原云∶夏月发麻疹用之良。亦河沙中之一种也（纲目失载）。
朱排山柑园杂识∶喇吗尝进瑶池水，水香如莲，色白而重，以玻璃器贮之，数百年不涸
不变
，人饮之能疗百病，康熙五十三年遣理藩院员外盛柱取之，自京出西宁口，望西北行。凡七
千里，至星宿海，即世所称火敦脑儿也。更西北行三千里，达昆仑山，山形如桃，皆积雪，
人不能上，测影高三百余丈，山前名孔雀门，后名马门，左名狮门，右名象门，山四隅各有
一山，皆低于昆仑，孔雀门内有池，名麻蓬达 。华言天河也，四山之水，合流于天河，河
水伏流至星宿海，复流出入中国。去昆仑西北四五里即瑶池。池匝百八十里，岸傍皆雪，水
中有五色细砂，滑腻可食，取水一瓶，并图山川风土而归，往返凡二年零六月。
稀痘取沙，与小儿常食之，即永不出痘。
《救生苦海》记载：有一种取用“神火”的方法；取劈砂一斤，加水研磨至细，用沸水冲调，水面会浮起一层细沫。用荆川纸在水面拖过，细沫便会粘附在纸上，将纸晒干后扫下粉末，这就是“神火”。剩下的砂液澄清去水，再次研磨、再次冲调，见到有浮起的细沫，依照前面的方法拖纸晾晒，如此重复六七次，直到没有浮沫为止。每斤劈砂大约可取得神火八九分，用乌金纸包裹收藏。
神火的性能能够拔毒收口。凡是痈疽毒疮难以愈合的，取少许神火，用鹅毛蘸取涂抹在膏药上贴敷，毒水容易干燥，疮口容易收敛，这是外科的圣药。
这种药物是千年古塔顶端的锻石。李时珍在《本草纲目》锻石条目下，附有古墓中出土的锻石，名为“地龙骨”，以及船油浸渍的锻石，名为“水龙骨”，唯独遗漏了这种，特此补充。盛再华说：塔上的锻石，承受了天阳和风露的气息，使其原本悍烈之性变得温和，因此能定痛生肌，止血祛湿，是治疗金刃创伤的重要药物，内服也有效。
外治方面用于止血生肌，涂抹于恶疮肿毒、寒湿疮。内治方面用于心腹痛、乌痧胀。妇女血崩、漏下、带下。男子久痢、便血。以及一切跌打损伤，恶血凝聚，腹痛欲死者，均可服用。
白虎丸：治疗一切青筋腹痛。《万氏家抄》记载：天龙骨不拘多少，去除泥土，用水飞法处理。制成如桐子大小的丸剂，每次服用五十丸，根据病情轻重加减剂量，用烧酒送服。初觉头痛、恶心、腹胀时，立即服用一剂，当时血液即可散开；如果过了三五天，青筋已经老化的，多服几次即可见效。
《本经逢原》记载：夏季发麻疹时使用此药效果良好。这也是河沙中的一种（《本草纲目》失载）。
朱排山《柑园杂识》记载：喇嘛曾进献瑶池之水，水香如莲花，颜色白而沉重，用玻璃器皿储存，数百年不干涸不变质，人饮用能治疗百病。康熙五十三年，派遣理藩院员外郎盛柱前往取回，从京城出发经过西宁口，向西北方向行进。共七千里，到达星宿海，即世人所称的火敦脑儿。再向西北行三千里，到达昆仑山，山形像桃子，全是积雪，人不能攀登，测量影长高三百余丈，山前名为孔雀门，山后名为马门，左边名为狮门，右边名为象门，山的四个角落各有一座山，都低于昆仑山，孔雀门内有一个池，名为麻蓬达，汉话意为天河，四座山的水汇流到天河，河水伏流至星宿海，再流出进入中国。距离昆仑山西北四五里就是瑶池。池周一百八十里，岸边都是雪，水中有五色细砂，滑腻可食用，取水一瓶，并绘制山川风土图带回，往返共两年零六个月。
用稀痘沙，让小儿经常食用，就永远不出痘。
*Jiu Sheng Ku Hai* (Sea of Saving Lives) records: There is a method for obtaining "Shen Huo" (Divine Fire); take one jin (approx. 500g) of Pi Sha (Split Sand), grind it finely with water, and rinse it with boiling water. A layer of fine foam will float on the surface. Drag Jingchuan paper across the water surface; the foam will adhere to the paper. Dry the paper and sweep off the powder, which constitutes "Shen Huo". Clarify the remaining sand liquid by removing the water, grind again, and rinse again. When foam appears, drag and dry the paper as before. Repeat this six or seven times until no more foam floats. From each jin of sand, approximately eight or nine fen (approx. 4-4.5g) of Shen Huo can be obtained. Store it wrapped in Wujin paper.
The properties of Shen Huo include extracting toxins and promoting wound closure. For carbuncles, ulcers, and toxic sores that are difficult to heal, apply a small amount of Shen Huo dipped in goose feather onto a plaster patch. The toxic fluid dries easily, and the wound closes readily. It is considered a holy medicine for external surgery.
This substance is the Duanshi (Calcined Stone) from the top of an ancient pagoda built over a thousand years ago. In the entry for Duanshi under Li Shizhen's *Bencao Gangmu* (Compendium of Materia Medica), there is mention of Duanshi from ancient tombs named Dilonggu (Earth Dragon Bone), and Duanshi soaked in boat oil named Shuilonggu (Water Dragon Bone), but this specific type was omitted and is hereby supplemented. Sheng Zaihua states: The Duanshi on the pagoda has absorbed the qi of heavenly yang, wind, and dew, transforming its originally fierce nature into a mild one. Therefore, it can relieve pain, generate flesh, stop bleeding, and remove dampness. It is an essential medicine for treating metal blade injuries and is also effective when taken internally.
Externally, it is used to stop bleeding and generate flesh, applied to malignant sores, swellings, toxins, and cold-damp sores. Internally, it treats heart and abdominal pain, Wu Sha Zhang (Black Miasma Distension). For women, it treats metrorrhagia, leukorrhea, and vaginal discharge. For men, it treats chronic dysentery and hematochezia. It is also suitable for all kinds of falls and bruises, accumulation of evil blood, and severe abdominal pain bordering on death.
Baihu Wan (White Tiger Pill): Treats all types of Qingjin Abdominal Pain (pain associated with visible blue veins). *Wan Shi Jia Chao* (Family Copy of Master Wan) records: Take Tianlonggu (Heavenly Dragon Bone) in any quantity, remove soil, and process by water flotation. Form pills the size of paulownia seeds. Take fifty pills per dose, adjusting according to severity, washed down with distilled liquor (Baijiu). If one initially feels headache, nausea, and abdominal distension, take one dose immediately; the blood will disperse at once. If three to five days have passed and the Qingjin (blue veins) have hardened, taking multiple doses will yield results.
*Benjing Fengyuan* (Supplement to the Classic of Materia Medica) records: It is effective for treating measles in summer. It is also a type found in river sand (omitted from *Bencao Gangmu*).
Zhu Paishan's *Ganyuan Zashi* (Miscellaneous Records from the Citrus Garden) records: Lamas once presented water from Yaochi (Jade Pool). The water smelled like lotus, was white in color and heavy. Stored in glass vessels, it did not dry up or change for hundreds of years. Drinking it could cure a hundred diseases. In the 53rd year of the Kangxi reign, the court dispatched Sheng Zhu, Vice Director of the Lifan Yuan (Court of Colonial Affairs), to retrieve it. Departing from Beijing via Xining Pass, they traveled northwest. After seven thousand li, they reached Xingxiu Hai (Starry Sea), also known as Huodun Naor. Traveling another three thousand li northwest, they reached Kunlun Mountain. The mountain resembled a peach, covered entirely in snow, impassable to humans. Its height was measured at over three hundred zhang based on shadow measurement. The front gate was named Kongque Men (Peacock Gate), the back gate Ma Men (Horse Gate), the left gate Shi Men (Lion Gate), and the right gate Xiang Men (Elephant Gate). Each of the four corners of the mountain had a subsidiary peak lower than Kunlun. Inside the Peacock Gate lay a pool named Mapongda, meaning "Heavenly River" in Chinese. Waters from the four mountains converged into the Heavenly River, which flowed underground to Xingxiu Hai, then emerged and flowed into China. Four or five li northwest of Kunlun Mountain lies Yaochi. The pool has a circumference of 180 li, with snow along the banks. The water contains fine five-colored sand, smooth and edible. One bottle of water was collected, along with drawings of the mountains, rivers, customs, and geography, returning after two years and six months.
Using Xi Dou Sha (Rare Pox Sand) and having children consume it regularly ensures they will never develop smallpox.