论曰∶人以胃气为本,水谷所以致养,山林之士,乃有休粮辟谷者,其说悉本神农之书
,究其性味,非养气而轻身,则必坚重而却老,神仙之术,有出乎此,理或然也。
真人辟谷∶云母丸方
云母粉 大豆黄 白茯苓(去黑皮) 松脂(炼) 巨胜(汤脱皮蒸) 蜡(炼各一斤)
椒(
去目及闭口者炒出汗十两)
上七味,捣研五味为末,炼松脂并蜡蜜和剂,初服如弹丸大,温酒下,日再服。
辟谷,丹砂丸方
丹砂(研水飞过) 白蜡(各一斤)
上二味,先细切白蜡,铜器煮清酒令沸,投蜡于酒中,候蜡销,置器于冷水中,蜡凝,
复将丹砂末投于酒蜡中,拌和令匀,再置于铜器中,用柳木篦子不住手搅,勿令猛火,候煎
成膏,取出放于不津瓷器中,可丸即丸如梧桐子大,每服十丸,温水下,每一服,得三七日
不饥,又一服,一月不饥,再一服,得一百日不饥,从此三服以后,每百日一服,如服药后
,觉渴饮冷水一盏,服至周岁以外,自觉身轻体健,延年不老,即不饥矣,如欲饮食之时,
先煮淡葵菜吃一次,然后每日根据常饮食无碍。
辟谷,凝灵膏方
茯苓(一十八斤为细末) 松脂(一十二斤) 松子仁(六斤为末) 柏子仁(六斤为末)
上四味,先取白蜜七斗,纳于铜器中,微火煎一日一夜,次第下药,搅令匀,微火再煎
七日七夜取出,每服如鸡子大一丸,温酒下,后十日再服一鸡子大,三十日更服一鸡子大,
满四剂,当得延年不老,若治癞病,加石硫黄石胆末各半两。
辟谷,木耳丸方
木耳(捣末) 大豆(炒熟捣末各八两) 大枣(煮熟去皮核研一升)
上三味,炼蜜和丸,如鸡卵大,有食日服一丸,无食日服二丸,逢食即食,无食亦不饥
矣。
辟谷,松蜡丸方
松脂(炼一斤十二两) 白蜡(一斤四两) 酥(半斤) 蜜(一斤四两) 白茯苓(去
黑皮捣
末十两)
上五味,先取松脂白蜡酥蜜四味,入瓷器内盛密封,坐于二斗黍米甑内同蒸,候米熟取
出,纳茯苓末,以杖搅和之,再密封,如前经五日,即开,捣和为丸,如梧桐子大,每服五
丸,酒下,早晨近晚服,十日后即服一丸,若饥加至二丸三丸,服此药时,不得食一切物,
服尽即不食。亦可延年。
辟谷,金花丸方
金箔,雄黄(油煎九日九夜研如粉) 丹砂(研如粉水飞取浮者曝干) 白茯苓(去黑
皮
水淘取浮者曝干捣末各一钱)
上四味,用白胶香二两,入少酒,煎如稀饧汁和之,捣一千二百杵,丸如绿豆大,合时
不得见鸡犬妇人孝子,每服温水下一丸,三七日不饥,又服一丸,百日不饥,从此以后,每
一百日一丸,服时前三四日,须先吃淡面食,至平旦日未出时,取一粒,面东服讫,连咽十
下,叩齿三十六通,若此后欲食,即食少果子通肠,不食即已,不得食水果子等,永不饥矣。
辟谷延年,天门冬丸方
天门冬(去心) 白茯苓(去黑皮) 白蜡 白蜜 白羊脂(去膜各一斤)
上五味,先捣罗天门冬茯苓二味为末,次以清酒五升,入大铛中煎三沸,纳羊脂煎三五
沸,又纳蜜并蜡煎五沸,掠去沫,次入天门冬茯苓末,用柳木篦不住手搅令匀,火勿令猛,
候煎成膏可丸,乃丸如樱桃大,又取大杏仁一升,汤浸去皮尖双仁,研如膏,倾入净通油瓷
瓶内,坐慢灰火中,纳前药丸子,于杏仁膏中,养令色白,即取离火,每服三丸,空腹温酒
下。
辟谷,稻米杏仁方
稻米(三斗水浸一宿曝干) 杏仁(三升汤去皮尖双仁细研水三升浸一复时澄去滓)
上二味,以杏仁汁浸米一宿炊之,曝干又浸,尽汁乃止,捣为末,每服一升,十日后
,三日服一升,一月后十日服一升,即不饥矣。
辟谷,青粱米赤石脂丸方
青粱米(一升) 赤石脂(三斤为末)
上二味,以水浸令相和,置温处三二日,上生衣,乃取捣丸如李子大,日服三丸,即不
饥矣,如渴当以少水饮之,可以远行。
辟谷,五谷方
粳米 黍米 小麦 麻子(熬) 大豆黄(各五合)
上五味捣末,以白蜜一斤,煎一沸去沫,和拌为丸,如李子大,每服一丸,冷水下,即
不饥矣。
辟谷,山精饼方
术(一斛净刮去皮洗摊令 细锉)
上一味捣碎,用水三斛,先纳术于大釜中,次入水一斛五斗,文武火煮之,水耗旋添,
尽三斛,煮至二日二夜,绞去滓,取汁用黍米一斗五升,净淘控令 ,先纳汁在釜中,次
入米,煮至六七沸,又下饴五斤,微火煎至三斗乃熟,取出置案上曝干,拌作饼子,四方断
之,令如梳大,阴干,每日食三饼,轻身益寿。
辟谷,山精丸方。
术(一斗净刮去皮洗控令 细锉)
上一味捣碎,以清酒二升,净瓮中浸之,一日一夜,绞去滓,纳铜器中,入釜以重汤煮
之,又入白蜜一斤,阿胶四两煎之,搅令相得,候如膏,即丸如弹子大,放干盛不津器中,
每服一丸,细嚼酒下,日三服,久服面体光泽,百病除去,轻身延年。
辟谷,仙术丸方
上一味捣碎,纳净瓮中,水二斛,浸一宿,取出纳大釜中,煮令减半,加清酒五斗,煮
至一斛,绞去滓,再纳釜中,微火煎之,又入炒大豆黄天门冬末各二斗,更煎搅和令匀,候
如膏,丸如弹子大,放干盛不津器中,每服三丸,细嚼温水下,日三服,久服耐风寒,延年
不老。
辟谷,枣木丸方
术(一斛净刮去皮控令 细锉)
上一味捣碎,以水一石五斗,纳釜中煮之,稍益水至三石,煮至三斗,绞去滓,却纳铜
器中,入白蜜六斤四两,炼成松脂粉二斤半,文火煎之,搅和令匀,候凝如膏,丸如弹子大,
放干,盛不津器中,每服三丸,含化咽之,日三服,久服长生不老。
辟谷,仙术茯苓丸方
术(五斤净刮去皮洗控令 细锉) 白茯苓(三斤去黑皮捣末)
上二味,先将术捣碎,以水三斗,纳釜中煮之,至五升,绞去滓,加茯苓末,搅和令匀
如膏,丸如弹子大,放不津瓷器中,每服一丸,细嚼温水下,日二服,久服活血驻颜,耐风
寒,延年不老。
辟谷驻颜,秘妙方
白茯苓(三斤捣为粉以生绢袋盛于水盆中渍之候水清取粉曝干) 粟黄(三斤晒干捣罗
为末) 胡麻(五斤九蒸九曝除去皮取三斤末)
上三味,取青州枣三斗,以水五斗,于大釜中,先煮令烂,去皮核,以布袋绞取瓤,却
于煮枣水内,慢火熬令稠,候冷入诸药为膏,每日空心及晚,各服一合,酒调下亦得,此是
神仙所服,切在秘密,勿传非人,其功不可具述,忌食米醋。
辟谷,白术丸方
白术(三斤捣为细末) 生黄精(二斗净洗控干捣碎绞取汁) 蜜(一斤)
上三味,先将黄精汁一味,于釜中用文火煎熬,取汁三升,再入蜜一斤,并将前白术末
,却纳汁中,煎成膏,丸如弹子大,令干盛不津器中,每服三丸,含化咽之,日三服,宁少
服令有常,不须多而中辍,渴则饮水,久服绝谷轻身,长生不老。
辟谷,黄精地黄丸方
生黄精(一斗净洗控干捣碎绞取汁) 生地黄(三斗净洗控干捣碎绞取汁)
上二味汁合和,纳釜中,文火煎减半,入白蜜五斤搅匀,更煎成膏,停冷丸如弹子大,
放干盛不津器中,每服一丸,含化咽之,日三服,久服长生。
治猝绝粮饥惫欲死,方
凡修行家,忽到深山无人之地,或堕涧谷深井之中,无食者,便应咽津饮水服气以代之。
咽津法
开口舌柱上齿,取津咽之,一日得三百六十咽,佳,渐习至千咽,自然不饥,三五日中
小疲极,过此渐觉轻强。
饮水法
凡遇有水无器,即以左手盛水,咒曰∶
承掾吏之赐,真人之粮,中正赤黄,行无过城,诸医以自防,咒毕,三叩齿,以右手指
,三握左手,如此三道,即饮之,后咒如此,若有杯器盛取,尤佳,亦左手执,右手以小物
扣之,如法,日饮三升,便不饥,若人多大器盛水,就地持咒扣齿如法,向王饮之,周行山
泽间,更食松柏叶助之。
凡取松柏叶,细切一二合嚼之,以水咽,一日中可食三二升,佳,又,掘取白茅根净洗
,并松柏叶等分,三物细切曝干,捣罗为末,以水嚼咽之,又,取蜡,食如钱大一片,一日
不饥,又,取大豆五升, 令先明匝热,以水服半合,早晨近晚,共服一合,服尽此,则可
度五十日,又,取赤小豆一升半炒,大豆黄一升半焙,二味捣末,每服一合,新水下,日三
服,尽此三升,可度十日,又,取术天门冬黄精葳蕤贝母,或生或熟,皆可单食,及木上耳,
及檀榆白皮食之,并辟饥,若遇谷贵绝粮,应预合之,以授贫者。
Commentary states: Humans rely on Stomach Qi (Stomach Energy) as the foundation, and water and grain are used to nourish the body. Scholars in the mountains and forests actually practice stopping food intake and avoiding grains. Their theories are all based on the books of Shennong. Investigating their nature and flavor, if they do not nourish Qi and lighten the body, they must make the body solid and heavy to resist aging. The arts of immortals have methods beyond this; perhaps the principle is indeed so.
True Person's Grain-Avoidance Formula: Yunmu Pill Formula
Yunmu Fen (Mica Powder), Dahuang (Fried Soybean), Baifuling (Poria with Black Skin Removed), Songzhi (Refined Pine Resin), Jusheng (Sesame Seeds, peeled with hot water and steamed), La (Refined Wax, each one jin); Jiao (Pepper, removing eyes and closed ones, fried until oil comes out, ten liang).
The above seven ingredients: Pound and grind five of them into powder. Refine the pine resin and wax, mix with honey to form a paste. Initially take a pill the size of a bullet, swallow with warm wine, twice a day.
Grain-Avoidance Formula: Dansha Pill Formula
Dansha (Cinnabar, ground and purified by water flotation), Baima (White Wax, each one jin).
The above two ingredients: First finely cut the white wax, boil clear wine in a copper vessel until boiling, throw the wax into the wine, wait for the wax to melt, place the vessel in cold water until the wax solidifies. Then throw the Dansha powder into the wine-wax mixture, stir to make uniform, put back into the copper vessel, stir constantly with a willow wood spatula, do not use fierce fire, wait until it boils into a paste, take out and place in a non-porous porcelain vessel. When ready, roll into pills the size of a paulownia seed. Take ten pills each time, swallow with warm water. Each dose results in twenty-one days without hunger; another dose results in one month without hunger; a third dose results in one hundred days without hunger. After these three doses, take one dose every one hundred days. If after taking the medicine, feeling thirsty, drink a cup of cold water. After taking for over a year, one will feel light and healthy, extending life and preventing aging, which means no longer feeling hungry. When desiring to eat, first boil and eat some bland Chinese mallow, then daily follow normal diet without hindrance.
Grain-Avoidance Formula: Ningling Ointment Formula
Fuling (Poria, eighteen jin ground into fine powder), Songzhi (Pine Resin, twelve jin), Songziren (Pine Seed Kernels, six jin ground into powder), Baiziren (Platycladi Semen, six jin ground into powder).
The above four ingredients: First take seven dou of white honey, put into a copper vessel, simmer gently for one day and one night, add medicines in order, stir to make uniform, simmer gently again for seven days and seven nights, then take out. Take one pill the size of a chicken egg each time, swallow with warm wine. Ten days later, take another pill the size of a chicken egg. Thirty days later, take another pill the size of a chicken egg. After completing four courses, one should extend life and prevent aging. If treating leprosy, add Shi Liuhuang (Realgar) and Shidan (Stone Gall) powder, half liang each.
Grain-Avoidance Formula: Mu'er Pill Formula
Mu'er (Wood Ear Mushroom, ground into powder), Dadou (Soybeans, fried and ground into powder, eight liang each), Dazao (Jujubes, boiled, peeled, pitted, and mashed to one sheng).
The above three ingredients: Mix with refined honey to form pills the size of a chicken egg. On days with food, take one pill; on days without food, take two pills. Eat when there is food; without food, one will not feel hungry.
Grain-Avoidance Formula: Songla Pill Formula
Songzhi (Pine Resin, refined, one jin two liang), Baima (White Wax, one jin four liang), Su (Ghee, half jin), Mi (Honey, one jin four liang), Baifuling (Poria with black skin removed, ground into powder, ten liang).
The above five ingredients: First take pine resin, white wax, ghee, and honey, put into a porcelain vessel, seal tightly, place inside a steamer containing two dou of millet, steam together. When the rice is cooked, take out, add Poria powder, stir with a stick, reseal, pass through five days as before, then open, pound and mix to form pills the size of paulownia seeds. Take five pills each time, swallow with wine, in the morning or near evening. After ten days, take one pill. If hungry, increase to two or three pills. While taking this medicine, do not eat anything else; after finishing the medicine, no need to eat. It can also extend life.
Grain-Avoidance Formula: Jinhua Pill Formula
Jinbo (Gold Foil), Xionghuang (Realgar, fried in oil for nine days and nine nights, ground to powder), Dansha (Cinnabar, ground to powder, water-floted, floating part dried), Baifuling (Poria with black skin removed, water-washed, floating part dried and ground to powder, each one qian).
The above four ingredients: Use Baijiaoxiang (Amber) two liang, add a little wine, boil to thick syrup consistency to mix, pound 1,200 times, roll into pills the size of mung beans. During preparation, must not see chickens, dogs, women, or mourners. Swallow one pill with warm water each time. Twenty-one days without hunger; take another pill, one hundred days without hunger. From then on, take one pill every one hundred days. Three to four days before taking, must first eat bland wheat flour food. At dawn before sunrise, face east, swallow one pill, swallow ten times in total, knock teeth thirty-six times. If wanting to eat afterwards, eat a few fruits to unblock the intestines; if not, it is fine. Do not eat fruits, etc., never feel hungry again.
Grain-Avoidance and Longevity Formula: Tianmendong Pill Formula
Tianmendong (Asparagi Radix, remove heart), Baifuling (Poria with black skin removed), Baima (White Wax), Bami (White Honey), Baiyangzhi (White Sheep Fat, remove membrane, each one jin).
The above five ingredients: First pound and sieve Tianmendong and Poria into powder. Then take five sheng of clear wine, put in a large pot, boil three times, add sheep fat, boil three to five times, then add honey and wax, boil five times, skim off foam. Next add Tianmendong and Poria powder, stir constantly with willow spatula, do not use fierce fire. When boiled into a paste suitable for pills, roll into pills the size of cherries. Take one sheng of large apricot kernels, soak in hot water, remove skin and tips, double kernels, grind into paste, pour into a clean oil-resistant porcelain bottle, place in slow ash fire, put the previous pills into the apricot kernel paste, nurture until color becomes white, then remove from fire. Take three pills each time, swallow with warm wine on an empty stomach.
Grain-Avoidance Formula: Daomi Xingren Formula
Daomi (Rice, three dou, soaked in water overnight, dried), Xingren (Apricot Kernels, three sheng, soaked in hot water to remove skin and tips, double kernels, finely ground, add three sheng water, soak for one shichen, clarify and remove dregs).
The above two ingredients: Soak rice in apricot kernel juice overnight, steam, dry, soak again, until juice is exhausted, grind into powder. Take one sheng each time. After ten days, take one sheng every three days. After one month, take one sheng every ten days, then no longer feel hungry.
Grain-Avoidance Formula: Qingliangmi Chishizhi Pill Formula
Qingliangmi (Green Millet, one sheng), Chishizhi (Halloysitum Rubrum, three jin ground into powder).
The above two ingredients: Soak in water to mix, place in a warm place for two to three days until a crust forms. Then take, pound, and roll into pills the size of plums. Take three pills daily, then no longer feel hungry. If thirsty, drink a little water; this allows for long journeys.
Grain-Avoidance Formula: Wugu Formula
Jingmi (Glutinous Rice), Shumi (Millet), Xiaomai (Wheat), Maziren (Hemp Seeds, roasted), Dahuang (Fried Soybeans, each five he).
The above five ingredients: Pound into powder, mix with one jin of white honey, boil once, remove foam, mix to form pills the size of plums. Take one pill each time, swallow with cold water, then no longer feel hungry.
Grain-Avoidance Formula: Shanjing Cake Formula
Zhu (Atractylodes Macrocephala Rhizome, one hu, cleaned, scraped, peeled, washed, spread thin, finely sliced).
The above single ingredient: Pound, add three hu of water, first put Zhu in a large cauldron, then add one hu five dou of water, cook with mild heat. Add water as consumed. After using three hu of water, cook for two days and two nights, strain to remove dregs, take the juice. Use one hu five sheng of millet, clean and drain, first put juice in the cauldron, then add rice, boil until six or seven boils, add five jin of maltose, simmer gently until reduced to three dou, then cooked. Take out, place on table, dry in sun, mix to form cakes, cut into squares, size like combs, dry in shade. Eat three cakes daily, lighten body and benefit longevity.
Grain-Avoidance Formula: Shanjing Pill Formula.
Zhu (Atractylodes Macrocephala Rhizome, one dou, cleaned, scraped, peeled, washed, drained, finely sliced).
The above single ingredient: Pound, soak in two sheng of clear wine in a clean urn for one day and one night, strain to remove dregs, put in copper vessel, place in cauldron for double-boiling. Add one jin of white honey and four liang of Ejiao (Donkey-hide Gelatin), boil, stir to combine. When like paste, roll into pills the size of bullets. Dry and store in non-porous container. Take one pill each time, chew finely, swallow with wine, three times daily. Long-term use makes face and body lustrous, removes hundred diseases, lightens body and extends life.
Grain-Avoidance Formula: Xianshu Pill Formula
The above single ingredient (Zhu): Pound, put in clean urn, add two hu of water, soak overnight, take out, put in large cauldron, boil until reduced by half, add five dou of clear wine, boil until one hu, strain to remove dregs, put back in cauldron, simmer gently. Add two dou of fried soybeans and Tianmendong powder, boil and stir to make uniform. When like paste, roll into pills the size of bullets. Dry and store in non-porous container. Take three pills each time, chew finely, swallow with warm water, three times daily. Long-term use resists wind and cold, extends life and prevents aging.
Grain-Avoidance Formula: Zaimu Pill Formula
Zhu (Atractylodes Macrocephala Rhizome, one hu, cleaned, scraped, peeled, drained, finely sliced).
The above single ingredient: Pound, add one shi five dou of water, put in cauldron to boil, gradually add water to three shi, boil until three dou, strain to remove dregs, put in copper vessel, add six jin four liang of white honey, two jin half of refined pine resin powder, simmer with gentle heat, stir to make uniform. When solidified like paste, roll into pills the size of bullets. Dry, store in non-porous container. Take three pills each time, hold in mouth to dissolve and swallow, three times daily. Long-term use leads to immortality.
Grain-Avoidance Formula: Xianshu Fuling Pill Formula
Zhu (Atractylodes Macrocephala Rhizome, five jin, cleaned, scraped, peeled, washed, drained, finely sliced), Baifuling (Poria, three jin, remove black skin, grind into powder).
The above two ingredients: First pound Zhu, add three dou of water, put in cauldron to boil, until five sheng, strain to remove dregs, add Poria powder, stir to make uniform like paste. Roll into pills the size of bullets, place in non-porous porcelain container. Take one pill each time, chew finely, swallow with warm water, twice daily. Long-term use invigorates blood, preserves complexion, resists wind and cold, extends life and prevents aging.
Grain-Avoidance and Complexion-Preserving Secret Formula
Baifuling (Poria, three jin, ground to powder, placed in raw silk bag, soaked in basin of water, wait for water to clear, take powder, dry), Suhuang (Millet Yellow/Golden Millet, three jin, dried, pounded and sieved to powder), Huma (Sesame, five jin, nine steamed and nine dried, remove skin, take three jin, ground to powder).
The above three ingredients: Take three dou of Qingzhou jujubes, add five dou of water, in a large cauldron, boil until soft, remove skin and pits, squeeze pulp through cloth bag. In the remaining jujube water, simmer gently until thick. When cool, add various medicines to make ointment. Take one he each time on an empty stomach and at night, mixed with wine is also acceptable. This is what immortals take; keep secret, do not transmit to unworthy persons. Its merits cannot be fully described. Avoid eating rice vinegar.
Grain-Avoidance Formula: Baizhu Pill Formula
Baizhu (Atractylodes Macrocephala Rhizome, three jin, ground to fine powder), Sheng Huangjing (Polygonatum Rhizome, two dou, cleaned, drained, pounded, squeezed for juice), Mi (Honey, one jin).
The above three ingredients: First, simmer Huangjing juice alone in a cauldron with gentle heat, extract three sheng of juice. Add one jin of honey, and the previously prepared Baizhu powder, put back into the juice, boil into paste. Roll into pills the size of bullets, dry, store in non-porous container. Take three pills each time, hold in mouth to dissolve and swallow, three times daily. Better to take less regularly than more intermittently. Drink water if thirsty. Long-term use stops grain intake, lightens body, ensures immortality.
Grain-Avoidance Formula: Huangjing Dihuang Pill Formula
Sheng Huangjing (Polygonatum Rhizome, one dou, cleaned, drained, pounded, squeezed for juice), Sheng Dihuang (Rehmanniae Radix, three dou, cleaned, drained, pounded, squeezed for juice).
The above two juices combined, put in cauldron, simmer gently until halved, add five jin of white honey, stir uniformly, boil into paste. Cool, roll into pills the size of bullets. Dry, store in non-porous container. Take one pill each time, hold in mouth to dissolve and swallow, three times daily. Long-term use ensures longevity.
Formula for Treating Sudden Starvation and Exhaustion
For practitioners who suddenly find themselves in deep mountains uninhabited places, or fall into ravines, valleys, or deep wells, with no food, one should swallow saliva, drink water, and practice Qi absorption to substitute for food.
Saliva Swallowing Method
Open mouth, press tongue against upper teeth, collect saliva and swallow. Obtain 360 swallows per day, which is good. Gradually practice up to 1,000 swallows; naturally no hunger. Within three to five days, slight fatigue may occur; after that, gradually feel light and strong.
Water Drinking Method
Whenever encountering water without vessels, hold water in left hand, chant spell:
"Benefit from the gift of the Clerk, the food of the True Person, upright red-yellow, passing through cities without fault, physicians protect oneself." After chanting, knock teeth three times, point with right finger, grasp left hand three times. Perform this ritual three times, then drink. Subsequent spells are the same. If cups/vessels are available to hold water, even better. Hold with left hand, tap with small object in right hand, according to method. Drink three sheng daily, then no hunger. If many people hold large vessels of water, chant and knock teeth on the spot according to method, pray to Wang (King/Deity) while drinking. Roam mountains and marshes, assist by eating pine and cypress leaves.
When picking pine and cypress leaves, finely chop one or two he, chew, swallow with water. Can eat two or three sheng per day, which is good. Also, dig up White Maogen (Imperata Rhizome), wash clean, mix equally with pine and cypress leaves. Chop three items finely, dry, pound and sieve to powder, chew and swallow with water. Also, take wax, eat a piece the size of a coin, one day without hunger. Also, take five sheng of soybeans, roast until bright and hot, swallow half he with water, morning and evening, total one he. After finishing this, can last fifty days. Also, take one and a half sheng of Chi Xiaodou (Adzuki Beans), roast; one and a half sheng of Dahuang (Fried Soybeans), bake. Pound two items to powder, take one he each time, swallow with new water, three times daily. After finishing these three sheng, can last ten days. Also, take Zhu (Atractylodes), Tianmendong (Asparagus Root), Huangjing (Polygonatum), Weirui (Ophiopogon), Beimu (Fritillaria), whether raw or cooked, can be eaten alone. Also eat tree ear mushrooms, and bark of Tan (Taxus) and Yu (Ulmus) trees to eat, all avoid hunger. If grain prices are high and food runs out, prepare these in advance to give to the poor.