what's the meaning of yin and yang
Yin and yang In Chinese philosophy, yin yang (/ˈjɪn ˈjɑːŋ/; Chinese: 陰陽 yīnyáng, lit. "dark-bright", "negative-positive") describes how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent in the natural world, and how they may give rise to each other as they interrelate to one another. Many tangible dualities (such as light and dark, fire and water, expanding and contracting) are thought of as physical manifestations of the duality symbolized by yin and yang. This duality lies at the origins of many branches of classical Chinese science and philosophy, as well as being a primary guideline of traditional Chinese medicine,[1] and a central principle of different forms of Chinese martial arts and exercise, such as baguazhang, taijiquan (t'ai chi), and qigong (Chi Kung), as well as appearing in the pages of the I Ching.
Chinese martial arts Chinese martial arts, often named under the umbrella terms kung fu (/ˈkʊŋ ˈfuː/; Chinese: 功夫; pinyin: gōngfu; Cantonese Yale: gūng fū) and wushu (武術; wǔshù), are the several hundred fighting styles that have developed over the centuries in China. These fighting styles are often classified according to common traits, identified as "families" (家; jiā), "sects" (派; pài) or "schools" (門; mén) of martial arts. Examples of such traits include Shaolinquan (少林拳) physical exercises involving Five Animals (五形) mimicry, or training methods inspired by Old Chinese philosophies, religions and legends. Styles that focus on qi manipulation are called internal (内家拳; nèijiāquán), while others that concentrate on improving muscle and cardiovascular fitness are called "external" (外家拳; wàijiāquán). Geographical association, as in northern (北拳; běiquán) and "southern" (南拳; nánquán), is another popular classification method.