桑白皮，味甘而辛，气寒，可升可降，阳中阴也。入手太阴肺脏。助元气，补劳怯虚羸，
泻
火邪，止喘嗽唾血，利水消肿，解渴祛痰。刀刃伤，作线缝之，热鸡血涂合可愈。
桑叶之功，更佳于桑皮，最善补骨中之髓，添肾中之精，止身中之汗，填脑明目，活血
生津
，种子安胎，调和血脉，通利关节，止霍乱吐泻，除风湿寒痹，消水肿脚浮，老男人可以扶
衰却老，老妇人可以还少生儿。
桑椹，专黑髭须，尤能止渴润燥，添精益脑。此三品相较，皮不如椹，而椹更不如叶也。
前
人未及分晰，世人不知，余得岐伯天师亲讲，老人男女之不能生子者，制桑叶为方，使老男
年过八八之数、老女年过七七之数者，服之尚可得子，始知桑叶之妙，为诸补真阴者之所不
及。所用桑叶，必须头次为妙，采后再生者，功力减半矣。
或疑桑椹乃桑树之精华，其功自胜于叶，而吾子谓椹不如叶，意者桑叶四季皆可采用，
而桑
椹必须四月采之为艰乎？曰∶椹与叶，功用实同。因椹艰于四季之采用，且制之不得法，功
逊于叶多矣。我今备传方法，使人尽知可也。四月采桑椹数斗，饭锅蒸熟，晒干即可为末。
桑椹不蒸熟，断不肯干，即干而味已尽散无用，且尤恶铁器。然在饮锅内蒸熟，虽铁锅而无
碍也，此皆岐天师传余之秘。同熟地、山茱萸、五味子、人参同用，实益算仙丹，诚恐世人
不知制法，所以单言桑叶之奇。盖无椹用叶，功实相同耳。桑椹紫者为第一，红者次之，青
则不可用。桑叶采叶如茶，种大者第一，再大者次之，再小者又次之。与其小，无宁大也。
过大，则只可煎汤以入药，不堪为丸散矣。洗目，宜取老桑叶，自落者无用矣。
桑白皮，味道甘甜而略带辛辣，性质寒凉，药性既可上升也可下降，属于阳中寓阴的药材。它主要归入手太阴肺经。能够辅助元气，治疗因虚劳导致的身体消瘦羸弱，清泻火邪，平息气喘咳嗽及咳血，通利水道消除水肿，缓解口渴并祛除痰液。对于刀刃造成的伤口，先缝合线口，再用热鸡血涂抹患处，即可愈合。
桑叶的功效，比桑白皮更佳，最擅长补充骨骼中的骨髓，增添肾脏中的精气，制止身体异常出汗，填充脑髓并改善视力，活血并促进津液生成，助孕安胎，调和血脉，疏通关节，制止霍乱引起的呕吐腹泻，去除风湿寒邪导致的痹痛，消除水肿和脚部浮肿。老年男性服用可以扶助衰弱、延缓衰老，老年女性服用可以恢复年轻状态甚至生育子女。
桑椹，专门使胡须头发变黑，尤其能缓解口渴、滋润燥热，增添精髓并补益脑髓。比较这三种桑树产物，桑白皮的药效不如桑椹，但桑椹的药效更不如桑叶。前人没有详细区分这三者的差异，世人也不了解这一点。我得到了岐伯天师的亲自讲解，得知对于男女老年人无法生育的情况，制作桑叶为方剂，让超过六十四岁（八八之数）的老年男性和超过四十九岁（七七之数）的老年女性服用，仍然可以获得子嗣，这才知道桑叶的奇妙之处，是其他滋补真阴的药物所不及的。所使用的桑叶，必须以第一次采摘的为最佳，采后再生长的叶子，药效会减半。
有人怀疑桑椹是桑树的精华，其功效自然胜过桑叶，而我却说桑椹不如桑叶，难道是因为桑叶四季都可以采摘，而桑椹必须在四月采摘比较困难吗？回答说：桑椹和桑叶的功效实际上相同。因为桑椹难以在四季中随时采摘，且如果炮制方法不得当，其功效就远逊于桑叶了。我现在详细传授制作方法，让人们都能知晓。在四月采摘数斗桑椹，放入饭锅中蒸熟，晒干后即可研成粉末。桑椹如果不蒸熟，绝对无法干燥，即使干燥了味道也已散失，变得无用，而且特别忌讳铁器。然而如果在煮饭的铁锅内蒸熟，虽然使用铁锅也没有妨碍，这都是岐天师传授给我的秘密。将桑椹与熟地黄、山茱萸、五味子、人参一同使用，确实是延年益寿的仙丹，只是恐怕世人不知道这种炮制方法，所以单独强调桑叶的神奇。其实如果没有桑椹而用桑叶，功效实际上是相同的。紫色的桑椹品质第一，红色的次之，青色的则不可使用。采摘桑叶像采茶一样，叶片大的品质第一，再大一点的次之，再小一点的又次之。与其用小叶，不如用大叶。如果叶片过大，就只能煎汤入药，不适合制作丸剂和散剂了。清洗眼睛时，宜选用老桑叶，自然脱落的叶子则不能使用。
Sangbaipi (Mori Cortex), with a sweet and slightly pungent taste, is cold in nature. Its action can ascend or descend, belonging to the category of Yin within Yang. It enters the Hand-Taiyin Lung Meridian. It assists Yuan Qi (Original Qi), treats emaciation due to deficiency and exhaustion, clears Fire Evil (pathogenic fire), stops asthma, cough, and hemoptysis, promotes urination to reduce edema, relieves thirst, and dispels phlegm. For knife wounds, after suturing, applying hot chicken blood to the closed wound can lead to healing.
The efficacy of Sangye (Mori Folium) is superior to that of Sangbaipi. It is best at replenishing bone marrow, adding essence to the Kidneys, stopping excessive sweating, filling the brain and improving vision, invigorating blood and generating body fluids, aiding conception and calming the fetus, harmonizing blood vessels, unblocking joints, stopping vomiting and diarrhea caused by cholera, eliminating wind-dampness and cold-bi syndrome, and reducing edema and foot swelling. Elderly men can use it to support decline and delay aging, while elderly women can use it to restore youth and even bear children.
Sangshen (Mori Fructus) specifically darkens beard and hair, and is particularly effective in relieving thirst, moistening dryness, replenishing essence, and benefiting the brain. Comparing these three products, Sangbaipi is inferior to Sangshen, but Sangshen is inferior to Sangye. Predecessors did not analyze them clearly, and the general public was unaware. I received personal instruction from the Heavenly Master Qibo, learning that for elderly men and women unable to conceive, preparing a formula using Sangye allows those over the age of 64 (8x8 years) for men and 49 (7x7 years) for women to still have offspring. This revealed the wonder of Sangye, which surpasses other herbs that tonify True Yin. The Sangye used must be from the first harvest; leaves regrown after harvesting have half the efficacy.
One might doubt that Sangshen, being the essence of the mulberry tree, should naturally be superior to Sangye, and ask if my assertion that Sangshen is inferior stems from the difficulty of harvesting Sangye in all four seasons versus Sangshen only in April? I reply: The functions of Sangshen and Sangye are actually identical. Because Sangshen is difficult to harvest seasonally, and if processed improperly, its efficacy falls far short of Sangye. I now transmit the method so everyone may know. In April, harvest several dou of Sangshen, steam them until cooked in a rice pot, dry them, and then grind into powder. If Sangshen is not steamed until cooked, it will never dry; even if dried, the flavor dissipates, rendering it useless. Furthermore, it abhors iron vessels. However, steaming in an iron cooking pot causes no harm. This is a secret transmitted by Heavenly Master Qibo. When used together with Shudi (Prepared Rehmannia Root), Shanzhuyu (Cornus Officinalis Fruit), Wuweizi (Schisandra Chinensis Fruit), and Renshen (Ginseng Root), it truly becomes an elixir for longevity. I fear people do not know this processing method, hence I emphasize the uniqueness of Sangye alone. Essentially, without Sangshen, using Sangye yields similar efficacy. Purple Sangshen is of the first grade, red is second, and green is unusable. Harvest Sangye like tea; large leaves are first grade, slightly smaller are second, and smaller ones are third. Better to have larger leaves than smaller ones. If leaves are too large, they can only be decocted for soup and are unsuitable for pills and powders. For washing eyes, old Sangye should be selected; naturally fallen leaves are unusable.