Jade, since ancient times, has been endowed with extraordinary significance by the Chinese nation. It is not only a symbol of wealth and status but also the embodiment of a gentleman's character, carrying the essence of heaven and earth and humanistic sentiments. However, in addition to its aesthetic and ceremonial value, jade also played an indispensable role in ancient Chinese medicine. Especially in Li Shizhen's monumental work, 'Bencao Gangmu' (Compendium of Materia Medica), the medicinal value of jade was meticulously documented, revealing the profound insights and practical wisdom of ancient people concerning all things in nature.
Perhaps the story begins in the distant prehistoric era. In the Neolithic Liangzhu culture ruins, a large number of exquisite jade artifacts were unearthed, including jade bi discs and cong tubes used for rituals. However, there were also some uniquely shaped jade pieces whose purpose remains debated, but some scholars speculate they might be related to primitive shamanistic healing activities, regarded as mediums for communicating with deities and warding off illness and disaster. This simple belief laid the initial ideological foundation for the later use of jade in medicine.
By the Spring and Autumn and Warring States periods, Taoist thought flourished, and the pursuit of immortality became the dream of many. Alchemy emerged, and jade, due to its hard texture, warm luster, and eternal incorruptibility, was regarded as a substance containing 'immortal energy.' Ge Hong, in 'Baopuzi,' recorded methods of 'consuming jade' to seek immortality, believing that jade could 'ward off evil spirits, soothe the soul, and benefit vital essence.' Although these concepts were imbued with strong mystical colors, they also reflected the ancients' exploration of jade's intrinsic energy.
The systematic and scientific documentation of jade's medicinal value truly came with Li Shizhen's 'Bencao Gangmu' in the Ming Dynasty. In this comprehensive medical masterpiece, Li Shizhen categorized jade under the 'Stone Section,' detailing its properties, efficacy, and applications. He stated: "Jade, sweet in taste, neutral, non-toxic. It primarily treats heat in the stomach, shortness of breath and vexation, stops thirst, moistens the heart and lungs, aids the voice, benefits hair, and nourishes the five zang organs." These discussions were not unfounded but based on the summation of previous experiences and his own observations.
The medicinal uses of jade recorded in 'Bencao Gangmu' are mainly reflected in the following aspects:
1. Clearing heat and detoxifying, calming the mind and soul: The ancients believed that jade was cool in nature and could clear heat and reduce fire. For example, grinding jade into powder and taking it internally could treat thirst and shortness of breath caused by stomach heat. Applied externally, it could be used for sores and swellings, having the effect of clearing heat, detoxifying, and reducing swelling and pain. At the same time, the warm luster of jade was believed to soothe the mind. For those with irritability and insomnia, wearing or touching jade had a calming and tranquilizing effect, which aligns with modern psychological views that contact with natural materials can relieve stress.
2. Nourishing and moisturizing, prolonging life: Li Shizhen mentioned that jade could 'moisten the heart and lungs, benefit hair, and nourish the five zang organs,' reflecting the ancients' understanding of jade's 'health-preserving' efficacy. They believed that the trace elements contained in jade, such as calcium, magnesium, and zinc, could be absorbed by the human body through skin contact or internal consumption, thereby nourishing the body and delaying aging. Although modern medicine has a more rigorous explanation for the mechanism of 'trace element absorption,' the conclusions drawn by the ancients based on experience largely coincide with modern science.
3. External wound healing, beauty and skincare: Jade powder was often used for external application in ancient times. For example, mixing jade powder with honey and applying it to the face could make the skin smooth and delicate, having a beautifying effect. This is similar to the addition of mineral ingredients in modern cosmetics. Furthermore, jade gua sha and jade massage therapies are still popular among the populace, believed to promote blood circulation, remove stasis, relax muscles, and activate collaterals.
It is worth noting that although 'Bencao Gangmu' extensively documented the medicinal value of jade, its application was not arbitrary. Li Shizhen emphasized that only 'true jade' should be used for medicine, and the preparation methods were meticulous, such as grinding it into extremely fine powder to facilitate absorption by the human body. This reflects the rigorous scholarly attitude of ancient physicians.
Today, with the rapid development of modern medicine, the medicinal value of jade is no longer mainstream. However, we cannot deny the wisdom of the ancients. The records of jade in 'Bencao Gangmu' are the crystallization of thousands of years of practical experience of the Chinese nation. It not only demonstrates the ancients' reverence for and exploration of all things in nature but also provides valuable clues for us to understand traditional culture and explore the path of health preservation. Modern scientific research has also gradually found that some jade stones indeed contain trace elements beneficial to the human body, and their physical properties, such as thermal conductivity and specific heat capacity, may play an auxiliary role in specific therapies. From the perspective of cultural heritage, wearing jade and playing with jade artifacts remains a way for people to pursue physical and mental harmony and express beautiful emotions. Jade, as a treasure of Chinese civilization, its thousand-year-old health wisdom continues to nourish our lives and spiritual world in new forms.