Since ancient times, jade has held an exceptionally important position in Chinese culture. It is not only a symbol of power and a carrier of wealth but also the embodiment of a gentleman's character. However, beyond its brilliant material and spiritual value, jade has also been endowed with unique medicinal properties in ancient medical texts, especially in Li Shizhen's Bencao Gangmu (Compendium of Materia Medica), becoming a 'medicinal stone.' This is not mere superstition but a crystallization of ancient people's profound observation and practice of all things in nature.
Jade as Medicine: Ancient Wisdom and Practice
The history of jade being used as medicine can be traced back to the distant Neolithic Age. Jade pestles and mortars used for grinding medicinal materials were unearthed at the Majiayao cultural site, undoubtedly early evidence of the combination of jade and medicine. By the Warring States period, Qu Yuan, in his Chu Ci·Jiu Ge (Songs of Chu·Nine Songs), wrote the line, “Eating chrysanthemums and drinking dew, eating jade essence,” hinting at the edible value of jade. During the Qin and Han dynasties, alchemists were even more obsessed with refining 'golden elixirs and jade liquids,' believing that consuming jade powder could lead to immortality. Although these ideas were heavily mystical, they reflected the ancients' exploration of jade's special efficacy.
It was Li Shizhen's Bencao Gangmu in the Ming Dynasty that truly systematized and theorized the medicinal value of jade. This monumental work not only included a large number of plant and animal medicinal materials but also meticulously documented mineral medicines. In the 'Stone Section,' Li Shizhen categorized jade into various types, such as 'jade powder,' 'celadon jade,' and 'white jade,' and elaborated on their properties, channels, effects, and indications. He believed that jade was 'sweet in taste, neutral in nature, and non-toxic,' possessing various effects such as 'clearing heat from the stomach, relieving shortness of breath and fullness, stopping thirst, moistening the heart and lungs, aiding the voice, calming the soul, benefiting blood circulation, and enhancing vital energy.' Among these, the description of 'moistening the heart and lungs, aiding the voice' remarkably aligns with the modern habit of vocalists wearing jade ornaments to protect their voices.
Jade in Bencao Gangmu: Specific Efficacy and Application
The medicinal use of jade recorded in Bencao Gangmu was not about directly swallowing whole pieces of jade, but rather grinding it into extremely fine powder, known as 'jade powder,' or using it in combination with other medicinal materials. For example, for 'xiaoke disease' (modern diabetes), Li Shizhen recommended using jade powder with other yin-nourishing and fluid-generating medicines. For symptoms of 'restlessness of mind and unsettled soul,' jade was believed to have a calming and tranquilizing effect. This bears a striking resemblance to the influence of certain minerals on the nervous system in modern medicine.
It is worth noting that Li Shizhen particularly emphasized the 'warm and moist' nature of jade. He believed that the warmth and moisture of jade were not only reflected in its tactile sensation but also in its harmonizing effect on the body's qi and blood. This concept of 'nurturing health with warmth and moisture' highly aligns with the holistic view of 'unity of heaven and man' in traditional Chinese medicine. The trace elements in jade, such as zinc, magnesium, and selenium, may penetrate the skin through long-term wearing or contact, subtly benefiting the human body. Although the ancients could not explain these phenomena with modern science, their observations and summaries left valuable experience for future generations.
Cultural Significance and Modern Inheritance
The records of jade's medicinal value in Bencao Gangmu not only enrich our understanding of the cultural connotations of jade but also demonstrate the profoundness of ancient Chinese medicine. It tells us that jade is not merely a symbol of beauty but also a 'medicinal stone' closely related to life and health. The formation of this concept is the crystallization of the Chinese nation's deep reflection and practice on nature, life, and health over a long historical period.
In contemporary times, with the development of science and technology, our understanding of jade has deepened. Although the idea of 'immortality through jade powder' has been disproven, jade's physical properties, such as its unique coolness, its massaging effect on acupoints, and the potential benefits of its trace elements, continue to receive attention. Many people wear jade bracelets and necklaces not only for aesthetic reasons but also to express their good wishes for health and peace. The popularity of jade rollers and jade gua sha boards as wellness tools is an innovative inheritance of the ancient 'jade health preservation' concept by modern people.
From the 'medicinal stone' in Bencao Gangmu to modern wellness tools, the value of jade has continuously evolved, but its close connection with the Chinese nation's health concepts has never been interrupted. It reminds us that while pursuing modern medical advancements, we should not overlook those traditional health preservation methods that embody ancient wisdom. Jade, this warm and moist stone, will continue to nourish the life and culture of the Chinese nation in its unique way.