What is a hexagram? Regarding this question, in "Xici·Xiao Zhuan", it is also mentioned: "The Eight Trigrams are arranged in it, and the images are in it." This means that the hexagrams of the Eight Trigrams refer to the arrangement and hanging of the lines of yin and yang according to certain rules, and the images symbolizing a certain thing and its meaning will naturally appear from it.
From this we can see that the so-called "gua" refers to the behavior of hanging when making or using objects. # Popular Science#
Regarding what "epic" is, in "Xici·Upload", it is answered as follows: "The sage has the erection of seeing the world, and imitates the description of it, and the image is suitable for the image, so it is called the image." # Headline Creation Challenge#
That is to say, the meaning of the image is originally the image and appearance of the sage seeing various things in the world, and imitates these images and appearances to make it look like the things it symbolizes. Therefore, the "epic" of the hexagram is the meaning of image. This not only reveals the meaning of image, but also reveals that image is the product of the ancients simulating the images of nature for a comprehensive abstraction.
