What are the so-called two instruments, four images, four images, eight diagrams and sixty-four hexagrams? What are the four elephants, eight diagrams and sixty-four hexagrams?

Two instruments refer to the white face and black face in gossip, and also refer to yin and yang, heaven and earth, or day and night, right and wrong, male and female.

The four images refer to the four seasons of spring, summer, autumn and winter, and the four directions of southeast and northwest, as well as fire, water and wind. In the traditional culture of China, Qinglong, Baihu, Suzaku and Xuanwu are the representatives of the four elephants. Qinglong stands for water, white tiger stands for wind, Suzaku stands for fire, and Xuanwu stands for earth (soil), which also represent four directions: east, west, north and south.

Bagua means eight directions, east, southeast, south, southwest, west, northwest, north and northeast.

Eight diagrams, that is, dry, Kun, Xun, exchange, gen, earthquake, separation, Kan.

Bagua: 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.

Sixty-four hexagrams come from eight diagrams, and eight hexagrams in the Book of Changes are arranged in pairs as sixty-four hexagrams. The names of the hexagrams are: Gan, Kun, Tun, Meng, Need, Litigation, Teacher, Bi, Small Beast, Shoe, Tai, Wu, Companion, Da, Qian, Yu, Sui, Gu, Qin, Guan, Bite, Ben, Peel, Fu, Innocent, Big Beast, H and so on.

Yuan Zhen gave birth to Tai Chi, Tai Chi gave birth to two instruments, two instruments gave birth to four images, four images gave birth to gossip, and gossip gave birth to everything.

Landlord, you can find these on Baidu Encyclopedia, which has more detailed instructions.