The sky is blue and black, the earth is yellow, and the universe is formed in a state of chaos and ignorance. The sun is oblique to the right, the moon is round, and the stars are all over the boundless space.
Note: Heaven and earth are mysterious and the universe is vast.
The phrase "heaven and earth are mysterious and yellow" comes from the Book of Changes. In the Book of Changes, it is said that "Heaven Xuan Dihuang" is changed to "Heaven and Earth Huang Xuan", and it is rhyme without changing ancient Chinese characters. Yuan Ye's Universe is from Huai Nan Zi and Tai Xuan Jing. Huainanzi said that "the up and down direction is called Yu, and it has been called Zhou since ancient times". Yang Xiong of the Western Han Dynasty wrote Tai Xuan Jing, in which he said "the field of heaven and earth". Together, the two classic words are "the vastness of the universe". This way of quoting classics is called dark quotation, so these two sentences are classics. Literally, these two sentences mean: the color of the sky is black and the color of the earth is yellow. Isn't this a grumbling moan? Can it be passed down as a classic for thousands of years? So what is the meaning of these two sentences? I can only try to understand. Let's follow the article and see where we can experience it. The word "heaven and earth" has multiple meanings in ancient Chinese, including many concepts, among which the land of space, heaven and earth that we are familiar with is just one of them. If you want to understand the meaning of the word heaven and earth, you must read the Book of Changes. The Book of Changes is the first of the Five Classics. It is about the way of heaven and earth, the change of yin and yang. China's traditional culture, with four books and a hundred schools of thought, developed from the roots of the Book of Changes. Learning China culture without reading the Book of Changes is putting the cart before the horse. The Book of Changes says, "Metaphysics refers to Tao and Metaphysics refers to vessels". Before the universe was born, it was in a state of chaos. Modern physics is called ultra-dense infinite collapse particles before the Big Bang, and China culture is called Taiji. 65.438+0.5 billion years ago, this ultra-dense particle suddenly exploded, forming the present material universe, in which tangible substances condensed into stars, namely the earth; Invisible space expands to form space, which is the sky. The Book of Changes says: Those who are clear ascend to heaven, while those who are turbid descend to earth. Isn't it vivid and concrete? But this is the physical world, the material world. In Yijing culture, it belongs to the metaphysical "tool world", that is, the material world. Metaphysics is a world of immaterial Tao, which is beyond our existing intelligence, so Confucius said "stay outside Liuhe". "Yes" means to admit that it does exist, and "No matter" means not to discuss it for the time being, because we don't have enough wisdom, so why bother quarreling if we say it! To tell the truth to people with high wisdom, it is heaven in metaphysics and earth in physics. People who are not wise enough can only say simple words: space is the sky and the earth is the earth. It's all the words of heaven and earth. Deep people have a deep understanding, while shallow people have a shallow view, and each has its own place. Xuan, in color, refers to the dark blue color close to black, which is called Xuan. In a sense, it refers to the sublime and inscrutable, and is called metaphysics. The color of the sky visible to the naked eye is blue, how can it be said to be black? Blue is the color of water and the color of the ocean. When the sun shines on the ocean surface, the light will return, and the sky we see is blue. But now the astronauts in space look very dark, and only the stars give off a little light. It's really dark, so the color of Tian Xuan is right. In addition, the sky is sublime, just as Laozi said, the metaphysical body of the sky is mysterious and unfathomable, which is beyond our existing wisdom. This is a metaphysical paradise, so it is called Tian Xuan. Rehmannia glutinosa has two meanings. Our culture in China, especially the traditional culture, refers to the culture before the pre-Qin period, that is, the culture of Xia, Shang and Zhou Dynasties, especially the culture of Zhou Dynasty. In ancient times, Xia, Shang and Zhou established their countries and capitals in the Yellow River valley. If the scope of China traditional culture is further narrowed, it should be said that it is the culture of the Yellow River Basin. The Yellow River is the mother river, which originates from Kunlun Mountain (about the ancient Zonglie Basin), gathers in Xinghai, crosses the Rocky Mountain, flows down from the northwest plateau through nine turns and eighteen bends, and at the same time brings down loess, forming an impact plain. The color of water is yellow, the color of soil is yellow, and crops such as millet and millet are yellow, so it is called Rehmannia glutinosa. Another meaning is that the celestial bodies in the universe, including the earth, are all products of the Big Bang, and they are all hot substances in the initial state. The earth condenses its temperature in the magma of the core, and it is constantly replenished with the help of the sun. Life can only exist if there is temperature. In chromatographic analysis, dark black is a cool color and yellow is a warm color. Rehmannia also praised the warm earth for its long-term nourishing and nurturing function, so China called the earth "mother". The sky is high and the tunnel is deep, and yellow also represents the depth of the tunnel. Superstitious people say, "When people die, they will go back to the grave. Crossing the Naihe Bridge is the way to the grave." . Although the words are not credible, their meaning is nothing more than another deep world unknown to the living. It can be seen that it is not easy to understand the word "heaven and earth are mysterious and yellow". The universe "Huainanzi" says that both sides are called Yu. The top and bottom are also called Liuhe, so Yu is the concept of space. Throughout the ages, it is called Zhou, which is a continuation of history and a concept of time. One of them talks about space and the other about time, which represents the concept of "time and space" in modern science. The word universe we use today only refers to physical space, which is only equivalent to what the ancients called "Yu", and there is no concept of the universe. Why? Because time does not exist objectively, but people's subjective feelings. The continuation of the state of space is time. No space, no time. Space is different, time is different. When the space expands, the time will be extended; on the contrary, when the space shrinks, the time will be shortened. The ancients had a story of "the king watching chess". The king of Jin Dynasty went into the mountains to chop wood. When he saw two boys playing chess in Panasonic, he stopped to watch a game of chess. Chess, the handle of the axe is rotten. When I got home, all my contemporaries died. Visible space is different and time is different. Today, we feel that time is not enough, and the time in a day is very short compared with when I was a child. This is natural, because the space is shortened. Xuanzang spent three years in the Tang Dynasty going to India to learn from the scriptures. Now it's only a few hours by plane, and the convenient transportation reduces the space. Naturally, our sense of time is shortened. In addition, time is directly related to the moving speed of an object. According to Einstein's theory, mass, energy and speed in the universe can be transformed into each other. The speed limit of the universe is the speed of light, that is, 300 thousand kilometers per second. When the speed of motion reaches the speed of light, time approaches zero. Moving faster than the speed of light, the time is reversed, which is "just visiting" described in science fiction films. At this point, human beings can be said to have "evolved", otherwise it is nothing new to always study monkeys changing into people and people changing into monkeys. But the problem is that zero is also a form of existence, not non-existence. Even if we just visit, it is only a countdown, and there is still no bondage beyond time and space. The Diamond Sutra and Laozi are classics that the two great sages of the East and the West taught us to break time and space. They have transcended religious boundaries. The so-called "there are saints in the East and saints in the West, which is also true." There were no scholars in ancient times who did not read these two classics. Today, we refuse to accept them as religious works, which is a blessing for us modern people and we can't enjoy them. The great flood refers to the early state after the formation of the earth. Five billion years ago (the formation of the solar system), the crust was very thin and the temperature was extremely high. The orogeny triggered the flood. The original meaning of the word flood refers to the early flood on the earth. There have been at least three major floods on the earth, and Dayu's flood control was the latest one, about 4000 years ago. Dayu's harnessing water and setting Kyushu is the earliest example of transforming nature in human history. The original meaning of drought is the ignorance of vegetation, which means that in ancient times, before human beings appeared, it was at least 5 million years now, when the earth was still in ignorance. China has a story of Pangu's creation since ancient times, which tells the story of Pangu's creation. A long time ago, before the heavens and the earth were separated, there was a man who slept in a world like a fetus and an eggshell. He slept for 18 thousand years. No one knows how old he is, so he is called Pangu. When he woke up, he felt dark and stuffy, so he split the eggshell in half with an axe. Bright people ascend to heaven, and turbid people descend to earth. In order to repair heaven and earth, he grows ten feet every day. Eighteen thousand years later, the heavens and the earth were finally fixed, and Pangu became a part of it. Although this is a fairy tale, it is a bit like what BIGBANG said.