Through them the natural changes were explained: the alternation of day and night, health and illness, life and death. We must keep in mind that yД«n and yГЎng are not intrinsic characteristics of things, but only concepts or labels that the Chinese used to explain the world around them. This is indeed the essence of life: change. When one increases, the other decreases, and vice versa, without there being an absolute predominance of one over the other. When the sun is at its highest, yГЎng is at its maximum and yД«n is at its minimum from that moment the yГЎng begins to diminish and the yД«n to grow, until the opposite point is reached, where the process will be reverted again.ДЇrom these laws, the existence of a balance between yД«n and yГЎng emerges. On the other hand, this change is constant and does not stop at any time.ДҐ. It is impossible for both poles to grow or decrease at the same time. During the day, as the sun rises, the light increases (yГЎng) and consequently the darkness (yД«n) decreases, and vice versa. When one grows, the other decreases, and vice versa. YД«n and yГЎng mutually inhibit each other, are constantly changing and their increases and decreases are correlated. In a world without light (yГЎng), there would be nothing that we could call darkness (yД«n), since the latter is defined in terms of the first: darkness is the lack of light.Д¤. Both are inseparable from each other and form the basis of their opposite. YД«n and yГЎng have the same origin and are mutually generated. The day, which is considered yГЎng in relation to night, can be divided into morning (yГЎng) and evening (yД«n).ДЈ. Each aspect yД«n or yГЎng can also be divided into yД«n or yГЎng. In all the existing we can find opposing aspects that we can classify as yД«n or yГЎng.Дў.

All existing things have a yД«n aspect and a yГЎng aspect. The YД«n-YГЎng theory also establishes certain laws in the relationship of these two principles:ДЎ. That is why it was said that 'yГЎng calls and yД«n responds'. In the ancient sexual rituals of rural China, held during the equinoxes, the men stood on the sunny side of the valley and called the women, who responded from the shadowed side. The ancients understood the universe as a manifestation of change, and everything that exists as a result of the interaction between these two polar opposites.ДЇrom this simile of the hill, opposed attributes were associated to each of these polarities: the yД«n as dark, cold, feminine, soft, curved, rounded, Earth, moon, soft, wet yГЎng as luminous, hot, masculine, hard, straight, angular, Heaven, sun, rough, dry. Shadow exists because there is light, and vice versa. Visualizing this hill, we can understand that yД«n and yГЎng are not opposing forces but two aspects of the same reality they do not exist independently, but in relation to each other. To formulate them, the Chinese relied mainly on the observation of the relationship between light and shadow, usually explained using the example of the two sides of a hill: the sunny side, yГЎng, and the shadowed side, yД«n. The concepts of yД«n and yГЎng are useful when describing the functioning of phenomena. These principles were called yД«n, 'dark', and yГЎng, 'luminous' they are not to be understood as two different natures but as two aspects of the same thing. This theory postulates the existence of two complementary principles that are present in all that exists. Much of her work focuses on teachings of master practitioner Kiiko Matsumoto.The YД«n-YГЎng й™°й™Ѕ Theory emerged in Chinese thought from the observation of nature. She has completed post graduate studies in classical Japanese herbal medicine known as Kampo and doctoral level training and certification in Sports Medicine AcupunctureВ®.ДЄn experienced and highly trained licensed acupuncturist and healer, she serves patients in the New York City area and continues to study the ancient healing arts and the art of classical Chinese medicine.

Tsao is a NCCAOM (National Certification Commission for Acupuncture and Oriental Medicine) Diplomat in Acupuncture and Chinese herbal medicine.

She received her Masters of Oriental Medicine at Tri-State College of Acupuncture, and currently serves as a senior clinical faculty member there. She is the founder of Integrative Healing Arts which utilizes Chinese medicine, acupuncture, herbal medicine and energy healing to treat patients, and the author of Will I Ever Get Pregnant, The Smart Woman's Guide to Get Pregnant Naturally Over 40. Tsao-Lin, has over 18 years of experience as an expert in alternative and Chinese medicine.

Yin and yang theory