Name the boy, his surname is Liu, and the last character is "一".

It’s good to call it “Liu Guangyi”. Try it yourself.

There is also "Liu Tianyi", but there seem to be more people named "Tianyi".

The name "Tianyi" means "Heaven creates water".

In the Book of Changes, "Heaven produces water, and the earth produces sixty percent of it."

What does "Heaven produces water, and the earth produces sixty percent of it"?

It originated from the observation of celestial phenomena in ancient times and is called a "river map".

The Hetu and Luoshu were generated from the observation of celestial phenomena and became precious treasures of the emperors during the Three Dynasties period. The Hetu and Luoshu have a simple structure and are one of the cultural cornerstones of ancient China. Liao Ping, a classics scholar in the Qing Dynasty, repeatedly verified the Book of Songs, the Book of Changes, and the Nei Jing, and confirmed that the theory of the Nei Jing was based on the Yi Jing, and the mathematics of the Yi Jing was taken from Heluo.

The river map combines ten numbers with five directions, five elements, yin and yang, and the symbols of heaven and earth. The diagram uses white circles as yang, sky, and odd numbers; black dots as yin, earth, and even numbers. And the heaven and earth are combined into the five directions, and the yin and yang are combined into the five elements, so the schema structure is distributed as follows:

One and six *** clans live in the north, because the sky creates water, and the earth creates six parts; Friends live in the south, because the two of the earth produce fire, and the sky produces 70% of it; three and eight are friends and live in the east, because of the three of the sky, wood, and the earth produces 80% of it; four and nine live in the west, because of the four of the earth, metal, and the sky 90% of it. ; Five and ten keep each other and are in the center, because the five in the sky generate the earth, and the earth becomes the ten. The river map was drawn according to the seasons when the five stars appeared. The five stars were called the five latitudes in ancient times. They are the five planets in the sky. Wood is called the Sui Star, Fire is called the Yinghuo Star, Earth is called the Zhenxing, Venus is called the Taibai Star, and Water is called the Chen Star. The movement of the five elements is divided into twenty-eight dormitories. Because its track is not far from the path of the sun, the ancients used it to keep track of the date. The five stars generally appear in the Arctic sky one after another in the order of wood, fire, earth, metal, and water. Each star travels for 72 days, and the five stars combine 360 ??degrees around the sky. It can be seen that the river map was drawn based on the celestial phenomena of the five stars, which is also the source of the five elements. Because before the winter solstice in November every year, Mercury is seen in the north. When the winter weather comes, everything is dormant, and there is only ice, snow and water on the ground. This is how the concept of water movement was formed. After the summer solstice in July, Mars is seen in the south. Just when the summer weather is coming, the ground is very hot. This is how the concept of the element of fire was formed. At the spring equinox in March, Jupiter appears in the east, when spring is in full swing, vegetation sprouts and grows. The so-called "spring comes to the world and the vegetation knows it", this is how the concept of the wood element was formed. At the autumnal equinox in September, Venus appears in the west. In ancient times, it represented weapons, to show that the killing power of autumn is in season, and that all things will grow old and wither, and the gold will be formed from this. In May, Saturn appears in the mid-heaven, indicating that the long-summer wet earth air is in season. Wood, fire, metal, and water all use this as the midpoint. The four-season climate changes caused by wood, fire, metal, and water are all observed from the ground. The concept of earth element is Formed this way.

Tao gives birth to one, gives birth to two, two gives birth to three, and three gives birth to all things. ("Laozi")

In the beginning, there was nothingness, nothingness and no name. It originated from one thing, but it had no form. ("Zhuangzi")

The sky is one, the earth is two; the sky is three, the earth is four; the sky is five, the earth is six; the sky is seven, the earth is eight; the sky is nine, the earth is ten. ("Book of Changes")

The first part of the sky is water, the second part of the earth is the source of fire, the third part of the sky is the source of wood, and the fourth part of the earth is the source of gold. The earth is 60% water, the sky is 70% fire, the earth is 80% wood, the sky is 90% gold, and the sky is 50% earth. ("Shang Shu Da Zhuan·Five Elements Biography")

The sky stands as one, one is the source of number, the earth is matched with six, forming the number of heaven and earth, combined to form the nature, the sky is three and the earth is eight, the sky is seven and the earth is two , the sky is five and the earth is ten, the sky is nine and the earth is four, and the five elements are transported, water comes first, then wood, then earth and metal. ("Yi Qiankun Chisel")

Why is the generation number of "River Diagram" "The sky creates water, and the earth creates 60% of it; the earth creates fire, and the sky creates 70% of it; the sky creates wood, and the earth 80% of it. “The four elements of the earth produce gold, and the sky produces nine percent of it; the five elements of the sky produce earth, and the earth produces ten percent of it”? Through research, it is believed that this was drawn by the ancients based on the time when the five stars appeared. Its meaning is as follows: "The sky generates water, and the earth generates 60% of it." It means that Mercury and the sun and the moon converge; Mars and the sun and the moon converge; "Three in the sky produce wood, and eighty percent of the earth produces it" means that Jupiter and the sun and the moon converge; "Fourth of the earth produces gold, and ninety percent of the sky produces it" means that Venus and the sun and the moon converge; "Fifth of the sky produces earth, and ten percent of the earth "" indicates the conjunction of Saturn and the sun and moon. One is the first hour of each day, or the first, eleventh, or twenty-first day of the lunar calendar; the second is the second hour of each day, or the second, twelfth, or twenty-second day of the lunar calendar; and so on.