木芝者，松柄脂沦入地，千岁化为茯苓，万岁其上生小木，名曰木威喜芝。夜视有光，持之
甚滑，烧之不燃，带之辟兵。以带鸡而杂以他鸡十二头共笼之，去之十二步，射十二箭，他鸡皆
伤，带威喜芝终不伤也。从生门上采之，于六甲阴干之百日，末服方寸匕，日三服，尽一枚则三千岁。
神仙饵松实丹，七月取松实，过时即落，难采。去木皮，捣如膏，每服如鸡子大，日三服。如服及百日，
身轻。三百日，日行五百里，绝谷。久服升仙。渴即饮水，亦可以炼了松脂同服之。
七月七日采松子，过时即落，不得治。服方寸匕，日三四服。一云服三合，百日身轻，三百
日日行五百里，绝谷。久服升仙。渴饮水，亦可和脂服之。若丸如梧桐子大，服十丸。
松脂以真定者为良。细布袋，或以清水百沸汤煮，浮水面者，以新FS 篱掠取投新水中。久煮
不出者皆弃不用，入生白茯苓末不制，但刮去皮，捣罗为细末拌匀，每旦服三钱匕，着口中，用
少熟水撩漱，更以脂点如常法揩牙，揩毕用少熟水咽之。仍濯漱如常法，大能牢牙驻颜乌髭也。
百炼松脂下筛以蜜，和内桶中，勿令通风。日服如博棋一枚，博棋长二寸，方一寸，日三服，
渐渐月别。服一斤不饥延年。亦可醇酒和白蜜如饧，日服一二两至半斤。凡取松脂，老松皮自有
聚脂者，最第一。其根下有伤折处，不见日月，得之名曰阴脂，弥良。惟衡山东行五百里，大松
皆三四十围，乃多脂。又法∶五月刻大松阳面，使向下，二十四株，株可得半升。亦煮老节根处，
有脂得用。《仙经》云∶常以三月入衡山之阴，取不见日月松脂，炼而饵之。即不多，而自来服
之，百日耐寒暑，二百日五脏益补。服之五年，即见西王母。《仙经》又云∶诸石所生三百六十
五山，其可食者满谷，阴怀土中松脂耳。其谷正从衡山岭直东四百八十里，当横捷正在横岭东北。
行过其南，入谷五十里，穷穴，有石城曰鹤。其方有大石四十余丈，秋如白松，松下二丈有小穴。
东入山，有丹石砂可食。其南方阴中有大松，大三十余围，有三十余株，不见日月，皆可取服之。
服松脂法，欲绝谷服三两，饥腹更服，取饱而止，可至一斤。不绝谷者服食一两，常先食，
须药力尽乃余食，错者即食不安而吐也。久服延年百病除。
又方∶松脂十斤。松实三斤、柏实三斤、菊花五斤，四味下筛蜜和服之。如桐子大，三十丸，
分为三服，一百日以上，不复饥，服之一年，百岁如三十四十者，久服不死。
又方∶以夏至日取松脂，日食一升，无食他物，饮水自欲。令人长服，可以终身。河南汝室
山取阴处断之，置器冲蒸之，膏自流出，炼出去苦气，白蜜相和食，日一升，二月后服如弹丸，
渴饮水，令人不老，取无时。
又方∶松脂五斤、羊脂三斤，上二味先炼松脂令消，纳羊脂，日服博棋一枚，不饥，久服神仙。
又方∶白松脂七斤、三遍炼白蜡五斤、白蜜三斤、茯苓粉三斤，上三味合蒸一石斗顷，服如
梧桐子大十丸，饥腹取日一丸，不得食一切物，得饮酒一过一合斋戒 咀五香，以水煮一沸去滓，
以药投沸中。欲致神女者，取茅根，治取汁以和之，蒸服之，神女至矣。
Mu Zhi (Wood Ganoderma) is formed when the resin from pine branches seeps into the ground. After a thousand years, it transforms into Poria Cocos (Fuling). After ten thousand years, small trees grow on its upper surface, named "Mu Weixi Zhi" (Wood Weixi Mushroom). It glows at night, feels very smooth to the touch, does not burn when ignited, and wearing it can ward off military disasters. If you tie a chicken with this mushroom and place it in a cage with twelve other chickens, stand twelve steps away, and shoot twelve arrows, the other chickens will be injured, but the chicken tied with Weixi Zhi will remain unharmed. Collect it from the "Sheng Men" (Life Gate), dry it in the shade during the Six Jia days for one hundred days, grind it into powder, and take one Fang Cun Bi (a square-inch measure) each time, three times a day. Consuming one unit is said to extend life by three thousand years.
Shen Xian Er Song Shi Dan (Immortal Pine Seed Pill): Collect pine seeds (Song Shi) in July; if missed, they fall and are difficult to gather. Remove the woody skin, pound them into a paste, and take an amount the size of a chicken egg each time, three times a day. After taking it for one hundred days, the body becomes light. After three hundred days, one can walk five hundred li per day and practice Gu Yu (grain avoidance). Long-term use leads to ascending to immortality. Drink water when thirsty, or mix with refined pine resin.
Collect pine nuts on the seventh day of the seventh lunar month; if missed, they fall and cannot be used. Take one Fang Cun Bi, three to four times a day. Another method says take San He (three he), and after one hundred days the body becomes light, and after three hundred days one walks five hundred li daily, practicing Gu Yu, leading to ascension with long-term use. Drink water when thirsty, or take with pine resin. If made into pills the size of Chinese parasol tree seeds, take ten pills each time.
Pine resin (Song Zhi) from Zhending is considered the best. Place it in a fine cloth bag or boil it in boiling clear water; those that float on the surface are selected, scooped up with a new bamboo sieve, and thrown into fresh water. Discard any that do not float after prolonged boiling. Add raw Bai Fu Ling (White Poria) powder (unprocessed), simply scrape off the skin, pound and sieve into a fine powder, mix well, and take three Qian Bi every morning. Hold in the mouth, rinse with a little warm water, then brush teeth with pine resin as usual, and swallow with a little warm water after brushing. Rinse as usual. This method greatly strengthens teeth, preserves youthfulness, and darkens beard hair.
Sift refined pine resin and mix with honey, store in an inner barrel, avoiding ventilation. Take one piece the size of a chess piece (Bo Qi, 2 cun long, 1 cun square) daily, three times a day, gradually increasing monthly. Taking one jin prevents hunger and extends life. Alternatively, mix with strong wine and white honey to form a syrup, taking one to half a jin daily. For collecting pine resin, the natural accumulation on old pine bark is the finest. The resin found under broken roots where sunlight does not reach is called Yin Zhi (Yin Resin) and is even better. Only east of Mount Heng, where large pines are thirty to forty zhou in circumference, is there abundant resin. Another method: In May, incise the sunny side of large pines so the resin flows downward; twenty-four trees yield half sheng each. Also, boiling old joint roots yields usable resin. The *Xian Jing* (Immortal Classic) states: Enter the shady side of Mount Heng in March to collect pine resin unseen by sunlight, refine and consume it. Even in small amounts, consistent use allows enduring cold and heat after one hundred days, and nourishing the five Zang organs after two hundred days. Five years of use brings a vision of Xi Wang Mu (Queen Mother of the West). The *Xian Jing* also states: Among the 365 mountains born of stones, valleys filled with edible substances contain only pine resin buried in soil. This valley lies directly east of Mount Heng ridge, 480 li away, specifically northeast of Heng Ling. Passing south, enter the valley for fifty li to the cave's end, where a stone city named He (Crane) exists. There are large stones over forty zhang high, resembling white pines in autumn, with small caves two zhang below the pines. Entering eastward, red cinnabar stones are edible. In the southern shady areas, there are over thirty large pines, thirty-plus zhou in circumference, unseen by sunlight, all suitable for collection. To consume pine resin, if practicing Gu Yu, take three liang; if hungry, eat more until full, up to one jin. Without Gu Yu, take one liang, always before eating, waiting for the medicinal effect to dissipate before consuming food; otherwise, discomfort and vomiting may occur. Long-term use extends life and eliminates diseases.
Another prescription: Ten jin of Song Zhi (Pine Resin), three jin of Song Shi (Pine Seeds), three jin of Bai Shi (Cupressus Seeds), and five jin of Ju Hua (Chrysanthemum). Sift these four ingredients, mix with honey, and take. Make pills the size of tung seeds, thirty pills per dose, divided into three servings. After more than one hundred days, hunger ceases. One year of use restores centenarians to the vigor of thirty- or forty-year-olds; long-term use prevents death.
Another prescription: Collect Song Zhi (Pine Resin) on the Summer Solstice, consume one sheng daily, abstaining from other foods, drinking water as desired. Long-term use ensures lifelong youth. In Henan Ruzhou mountains, cut pines in shady areas, place in vessels, steam, and collect flowing ointment. Refine to remove bitter odor, mix with white honey, consume one sheng daily. After two months, change to pill size of a bullet, drink water when thirsty, prevents aging, collection time is flexible.
Another prescription: Five jin of Song Zhi (Pine Resin) and three jin of Yang Zhi (Sheep Fat). First refine Song Zhi until melted, add Yang Zhi. Take one Bo Qi-sized piece daily, prevents hunger, long-term use leads to immortality.
Another prescription: Seven jin of Bai Song Zhi (White Pine Resin), five jin of Bai La (Beeswax) refined three times, three jin of Bai Mi (White Honey), and three jin of Fu Ling Fen (Poria Powder). Steam these four ingredients together for a duration equivalent to emptying a stone-dou measure. Make pills the size of tung seeds, take ten pills. When hungry, take one pill daily, abstain from all food, allow only one round of wine consumption. Observe fasting rules, chew Wu Xiang (Five Spices), boil in water for one boil, strain, and drop medicine into the boiling water. To summon Shen Nv (Divine Maiden), extract juice from Mao Gen (Imperata Rhizome), mix with it, steam and consume; the Divine Maiden will arrive.