What is the eight-character diagram of Miao nationality?

Naxi people have a "eight-grid map". "Eight diagrams" is "a diagram formed by killing frogs" in Naxi language.

There is a beautiful legend:

In ancient times, the Naxi people were sparsely populated, and their ancestors hoped that the population would be prosperous, so they envied the frog's reproductive ability very much and regarded the frog as their totem. Therefore, frogs are favored by Dongba people in all aspects. At that time, there was a strange disease, and people couldn't tell the direction, so people elected white bats to heaven, seeking scriptures that could cure the plague. But on the way back, the scripture accidentally fell into the sea and was swallowed by the frog. In order to retrieve the scripture, man asked the gods to shoot the frog with an arrow. Frogs make five kinds of sounds when they die, which have evolved into the five elements of "Jin Mu fire, water and soil", representing five directions: east, south, west, north and middle. Arrows shoot from the east and face the west (iron arrows belong to gold); Arrow tail refers to the east (wood arrow tail belongs to wood); Frog head facing south (rise of the legend is a fire); Frog tail facing north (discharging black kidney water, belonging to water); Frogs live in the middle (internal organs belong to the earth). Later, the ancestors of Naxi people matched the twelve zodiac signs around them to indicate twelve o'clock, forming this pattern. It can be said that Bagetu is not only the totem culture of Naxi nationality, but also a graphic used by Naxi ancestors to mark the direction and season. It is a very practical divination tool, and people often use it to choose auspicious days, names and places, and predict bad luck.

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