Much of the elegance, beauty and profound truth of Chinese medicine derives from the foundation on which it rests – the interplay of yin and yang. These are principles that stand in dynamic tension, regulating and defining the expression of attributes, describing a process in motion. Essential to this is the understanding of qualities and properties in relation to something else. In the human body, yin and yang are ascribed to illustrate xu, vacuities and shi, repletions, which seek adaptation and reconciliation in the service of homeostasis. When movement in the body becomes insufficient, as in some motility and circulation disorders, activation may be required to resolve the natural balance of function and structure. Chinese medicine employs techniques to facilitate activation – acupuncture, herbs, exercise, bodywork – nudging the body back to balance. Restoration of harmony between yin and yang is the fundamental goal, reclaiming or re-establishing a new dynamic of balance.
Characteristics are assigned to identify yin and yang properties. Some yang properties include: activation, upward and outward movement, hot temperature, transformative action. Some yin properties include: quiescence, downward and inward movement, cold temperature, consolidation. Many of these properties describe a primary metaphor of yang energy/function in relation to yin structure. Each yin/yang metaphor requires the other for definition and meaning in dynamic relationship. All these properties are required for health, subject to the situational demands of a being in the world. Without quiescence and rest, activation would become unsustainable, without activation, structure could not be replenished. The dance of yin/yang is infinite in its possibilities. Constitutionally, we are comprised of these yin/yang attributes, both temporary and some more sustained. These sustained propensities can reflect healthy patterns, as in our efforts to reduce lability and vulnerability by maintaining a balance of activation followed by rest and renewal, utilization of resources followed by nourishment and replenishment. Sustained patterns can also reflect stasis, lack of vitality and movement, accumulation and concretion. Our task in Chinese medicine is to evaluate these yin/yang relationships and determine if, when and how influence may be beneficial to restore harmony between these forces.
Symptoms provide opportunities for insight into the balance of yin and yang. Symptoms may be significantly disruptive in and of themselves or may be early indicators of imbalances that may give rise to more serious problems as they skew further out of harmony. Restoration of yin/yang harmony is the more fundamental objective, with all the benefits that may accrue, not merely the eradication of symptoms. This constitutional approach engages the full benefit of our observation and experience. As we attend to evidence of balance or imbalance, we prepare ourselves for health and for the challenges to adaptation that we will surely experience. This reflection and preparation are foundational in the Chinese medical literature, with the admonition in the Yellow Emperor’s Classic (221 BCE) not to wait until one is thirsty before digging a well. Yang sheng nourishing life practices are one mechanism by which we utilize our yin/yang assessments and strategically apply ourselves to the restoration and maintenance of balance and harmony. Planning for and investing in true wellness is a means of focusing our attention and acting in accordance with our awareness.