Bagua originated from China's ancient thoughts about the formation of the basic universe, the rotation relationship between the earth and the sun, and the combination of agricultural society and life philosophy. The original data source is the Book of Changes in the Western Zhou Dynasty, which contains 64 hexagrams, but no images. "Yi Zhuan" records that "it is easy to have Tai Chi, and two instruments are born. Two instruments give birth to four elephants, and four elephants give birth to gossip. " The two instruments are yin and yang, which can be extended to heaven and earth, day and night, and the difference between men and women. These four images are Shaoyin, Shaoyang, Taiyin and Sun. In different periods, it can correspond to four directions, four seasons and four elephants respectively. Qinglong lives in the east, with the spirit of spring, and shaoyang is the main one; Suzaku lives in the south, the breath of summer, the sun is the master; The white tiger lives in the west, with autumn qi and less yin; Xuanwu is located in the north, and the atmosphere in winter is mainly lunar. Four-season health-care liquid corresponds to health, growth, harvest and storage respectively. Eight diagrams, that is, dry, Kun, Xun, exchange, gen, earthquake, separation, Kan. Represents the meaning of heaven and earth respectively, which is explained in detail below. Some scholars in the Song Dynasty thought that the four images played eight diagrams (directions) and eighty-eight generated sixty-four hexagrams, which was Fuxi Eight Diagrams, also called innate gossip; Some scholars believe that gossip should come from Zhou Wenwang's theory of feeling Kun. He believes that the intersection of heaven and earth produces everything, and heaven is dry and earth is Kun. The other six hexagrams of gossip are their children: Zhen is the eldest male, Kan is the middle male, and Gen (pronounced in Mandarin: gè n; Cantonese: gan3, the same as "Jin") is a boy; Xun (Mandarin pronunciation: xù n; Cantonese: seon3, the same as "Xin") is the eldest daughter, and it is the gossip of Wang Wenzhi, also known as the gossip of the day after tomorrow. The eight diagrams symbols usually appear together with the Taiji diagram, which represents the ultimate truth of China's traditional belief (Confucianism and Taoism): "Tao". The "hexagram" of gossip is a word of understanding. From Guiyu to Bugui, it refers to Tugui, which is made of mud and measures the shadow of the sun. Setting up the sun shadow measurement in Bagui, that is, collecting and recording the observed sun shadows from four angles, formed the image of gossip. The basic unit of eight diagrams is hexagrams, and most of them are special symbols describing the changes of sun shadows. There are two kinds of hexagrams: Yin and Yang, with Yang indicating sunshine and Yin indicating moonlight. Each hexagram has three hexagrams, representing heaven and earth, including the whole celestial movement and meteorological changes. These astrological studies are called astronomy and the earth. Geography and personnel should be combined to carry out production and life according to these laws. The arrangement order of each hexagram is from bottom to top, the bottom horizontal line is called the first hexagram, the middle horizontal line is called the second hexagram, and the upper horizontal line is called the third hexagram. Eight diagrams represent eight basic images: dry represents heaven, Kun represents earth, earthquake represents thunder, Xun represents wind, gen represents mountain, exchange represents ze, ridge represents water, and separation represents fire. They are always called classics, and the arrangement of two of the eight classics constitutes sixty-four hexagrams. Bagua: It is a set of symbols in ancient China. With "one" for Yang and "-"for Yin, three such symbols form eight forms, which are called Eight Diagrams. Each six-pointed star represents something. Dry represents the sky, Kun represents the earth, ridge represents water, far represents fire, earthquake represents thunder, roots represent mountains, rafters represent wind, and pairs represent ze. Eight diagrams are matched with each other to get sixty-four hexagrams, which are used to symbolize various natural phenomena and personnel phenomena. It is discussed in detail in the Book of Changes. Gossip is said to have been created by Fuxi and later used for divination. In the workshop, the Chinese character "three for peace, but not half a meter" is also used to remember the eight diagrams symbols. The representative symbols of hexagrams evolved from three hexagrams. The image represented by gossip. Gossip represents China's early philosophical thoughts. Its influence is not only divination and geomantic omen, but also Chinese medicine, martial arts and music.