Fu Xi Draws the Eight Trigrams: This Ancestor Was Actually the Earliest "Product Manager"

When it comes to the "first-generation thinkers" of ancient China, if Fu Xi claimed second place, no one would dare to take first. The era when this ancestor lived is heartbreaking to think about — people spent every day "cutting bamboo, stringing bamboo, shooting clay pellets, chasing game," so busy they barely had time to rest, yet still went hungry from one meal to the next. Anyone else would have grumbled and gone back to hunting, but Fu Xi was different. He insisted on pondering: is there any fixed order to this heaven and earth?

So he climbed to the top of Guatai Mountain every day to keep watch, craning his neck to study the stars, bowing his head to observe mountains and rivers, and even paying attention to the patterns of birds and beasts, as well as the plants on the ground. The *Book of Changes · Great Appendix* says he "looked up to observe the images in the sky, looked down to examine the patterns on the earth, observed the markings of birds and beasts and the suitability of the land, drew analogies from his own body nearby, and from all things far away." Put simply, he was a passionate observation enthusiast — if he lived today, he might be a natural history blogger.

After who knows how many years of observing, a turning point came. Legend has it that one day, a sudden sound echoed from Longma Mountain across the Wei River, and a dragon horse flew out. Its whole body was covered in patterns as if carved with symbols, and it landed leisurely on the Fenshi Rock in the middle of the river. The rock itself also transformed like magic, becoming a three-dimensional Taiji diagram, with the two forces of yin and yang swirling around, so dazzling it made one's eyes swim. At the sight, Fu Xi's mind went "boom" — it turned out that all things in heaven and earth, in the end, boil down to two words: yin and yang.

Don't underestimate these two words. It was like giving people of that time a "God's-eye view." Before, the world had seemed like a chaotic mess; now, with yin and yang, everything — heaven and earth, day and night, cold and heat, male and female — could fit into this framework. Seizing the moment, Fu Xi used a single horizontal line "—" to represent yang, and two broken lines "--" to represent yin. Stacking them in groups of three, he created eight basic symbols, which are the Eight Trigrams: Qian, Kun, Zhen, Xun, Kan, Li, Gen, Dui, corresponding to heaven, earth, thunder, wind, water, fire, mountain, and lake.

This story sounds mysterious, but it actually follows the same logic as product development today: first extract core concepts from complex phenomena, then build a framework with simple logic, and finally output a usable system. Fu Xi's move was simply an ancient version of "from user needs to product launch."

Later, this story became more and more legendary. The Longma Futu Temple was built in Mengjin, Luoyang; on Guatai Mountain in Tianshui, there remain the Longma Cave and Fenshi Rock, and even the Huagua Platform (Trigram-Drawing Platform) was built in a proper manner. The bluestone abacus on the platform is even more interesting: it looks like both the Hetu (River Map) and Luoshu (Luo River Chart), but upon closer inspection, it is neither. To this day, no one has fully figured it out. Some say it was a "auxiliary tool" for Fu Xi when he drew the trigrams — if it were today, it might just be an ancient version of "scratch paper."

In fact, how could the Eight Trigrams have appeared out of nowhere? They were the accumulated experience of ancestors who depended on the weather for food and struggled through life generation after generation. Summarized by Fu Xi, they became a symbolic system that could explain the universe. The *Book of Changes* says, "In the system of Change, there is the Supreme Ultimate (Taiji), which generates the Two Modes; the Two Modes generate the Four Images; the Four Images generate the Eight Trigrams." It sounds profound, but in plain terms: the world evolved from simplicity to complexity step by step.

Later, King Wen of Zhou expanded the Eight Trigrams into sixty-four hexagrams, and Confucius wrote annotations for them, making this system more and more extensive. But tracing it back to its source, we must return to Fu Xi, who squatted on the mountaintop observing the scenery. He probably never imagined that the symbols he drew on a sudden whim would become the philosophical foundation of the entire Chinese civilization.