“Qian [qián] (sky), Kun [kūn] (earth), Zhen [zhèn] (thunder), Xun [xùn] (wind), Kan [kǎn] (water), Li [ lí] (fire), gen [gèn] (mountain), and dui [duì] (ze)" are divided into eight directions.
It symbolizes the eight things and natural phenomena of "heaven, earth, thunder, wind, water, fire, mountain, and lake", symbolizing the changes and cycles of the world. The classification method is like the five elements, and everything in the world can be classified. In Bagua, he is also the ancient ancestor of binary and electronic computers.
The origin of the Bagua diagram, in the documents handed down from ancient times, was first from Shao Yong in the Song Dynasty. Later, Zhu Xi's "Original Meaning of the Book of Changes" adopted Shao Zi's diagram and made it popular. Later, other scholars drew other Bagua diagrams. Extended information:
The Bagua Diagram is derived from the "River Diagram" and "Luoshu" in ancient China. Fuxi made it based on these two star diagrams created by Suiren. Among them, "He Tu" evolved into the innate gossip, and "Luo Shu" evolved into the acquired gossip.
Bagua was first created by Fuxi based on the two star charts and calendar "Hetu Luoshu" created by Suiren. The location is Guadi Village in Hongdong, because the village is surrounded by mountains and there are eight villages distributed around it, and they are all eight miles apart, shaped like the bottom of Gua Di. Fuxi used scenes to draw hexagrams, so he created the Bagua Diagram. This diagram evolved from the Bagua Diagram created by King Wen of Zhou Dynasty by Fu Xi. The Bagua Diagram is located on the central axis of the Hongdong Sophora Tree Scenic Area, which means "roots in Hongdong".
Reference source: Baidu Encyclopedia-Bagua Diagram