Generally speaking, is that a convex mirror or a concave mirror? What's the difference between them? Most people think that mirrors will reflect light, but they are not. Generally speaking, what kind of mirror you choose depends mainly on your purpose.
Concave mirror has a restraining effect, mainly to turn money into treasure. If the dungeon or mascot is far away from the door, you can use the converging concave mirror.
The function of convex mirror is to turn house into evil. If there is evil on the opposite side, you can block it with a convex mirror and reflect it back. Therefore, there is no difference between convex mirror and concave mirror, but their uses are different.
Eight diagrams (the classification of things by ancient people in China when they knew the world)
Eight diagrams can be found under the copula of the Book of Changes: "The ancients were the kings of the Xi family, looking up at the sky and looking down at the land law; Bird-watching articles and land suitability; Close to the body, away from everything, so I began to gossip, in order to understand the virtue of the gods and the feelings of everything. "Eight diagrams are born in Tai Chi, two instruments and four images" and "four images are born in Eight Diagrams".
It is also an abstruse concept in the ancient culture of China, and a set of metaphysical philosophical symbols composed of three groups of Yin and Yang. His profound philosophy explains natural and social phenomena. Gossip in the column, like in it; Therefore, it is very important to be in it; Combine rigidity with softness, and change it; What is the life of a copula? It moves in it.
The basis for the formation of the Eight Diagrams is easy images, and the basis for emphasizing hexagrams is change. "Being in it" is the internal motivation for the spread of Yi Dao. Gossip represents the yin and yang system of things' own changes, "one" represents yang, and "-"represents yin. These two symbols are combined in parallel according to the changes of yin and yang in nature to form eight different forms, which are called eight diagrams. Gossip is actually the earliest written expression symbol.
In China culture, it, like "Yin-Yang and Five Elements", is a tool to interpret the relationship between various things in world time and space. Each six-pointed star represents something. Dry represents the sky, Kun represents the earth, Xun represents the wind, earthquake represents the thunder, ridge represents the water, far represents the fire, gen represents the mountain, and right represents the ze.
Gossip is like eight infinite invisible big pockets, which put everything in the universe. Eight trigrams are matched with each other to become sixty-four hexagrams, which are used to symbolize various natural phenomena and personnel phenomena and are based on various people and things in today's society; The eight diagrams in traditional Chinese medicine refer to the eight parts around the palm. Gossip represents Yi-ology culture and permeates all fields of East Asian culture.
Refer to the above? Baidu encyclopedia-gossip