The concept of one qi circulating does not only reveal the laws of the human body's own operation, but also the laws that all things in heaven and earth follow together. In the wisdom of the Neijing, the movement of yin and yang is endless, which can be deduced by numbers or described by images. In the same way, the same is true of the Circulation, which has different levels between heaven and earth, and this level is infinitely divisible. The circulation of one qi in the human body is only one level compared to the larger circulation of one qi between heaven and earth. From the perspective of Buddhism, the Buddhist scriptures say that "there is a way to live in the void", and each of the three thousand worlds has the law of evolution of the formation and dwelling and the destruction of emptiness. This process actually corresponds to the process of raising and collecting the circulation of a qi circulation, which is completely corresponding. If we look a little closer, the rise and fall of dynasties in history will also make us feel this pattern. Friends who study history will also feel this way, and the alternation of the rise and fall of history, such as the law of unprovoked rings, is in it. To put it a little shorter, there are cold and hot times in a year, and there is a day and night change, which is also a rise and fall, and they are all some big or small manifestations of the same circulation. In general, the circulation of one qi is a profound and vast law, which runs through all things in heaven and earth, from the micro to the macrocosm, from the individual to the whole, from the past to the present, from the present to the future. It is an important tool for us to understand nature, life, and history, and it is also an important way for us to pursue truth and wisdom. 
From the perspective of medicine, drugs such as ephedra, aconite, and asaroxin have the effect of promoting the rise of yang energy;Drugs such as gypsum, rhubarb, and schisandra can guide the decline of yang energyDrugs mediated by Zhongjiao, such as dried ginger and licorice, can play a coordinating role in Zhongjiao, so that the yang energy rises and falls in an orderly manner. These drugs cooperate with each other to form a circulating flow of air. If we look at all medicines from the perspective of a single circulation, we can see them as a single medicine, as a whole. This is because all medicines are part of the circulation between heaven and earth, and there is an interdependent and mutually reinforcing relationship between them. From the perspective of the level of formless qi, the circulation of one qi is vast and ubiquitous, it exists between the entire heaven and earth, and all things cannot escape. This law has the characteristics of being big and small, and there are endless levels of existence. In order to better grasp this complex system between heaven and earth, we should start from the perspective of images, as Qi Bo suggested, and adhere to simplicity to control complexity. This huge system was summarized by Mr. Huang Yuanyu in "The Source of the Four Sacred Hearts" with the system of "four images of the earth, one qi circulation", and Mr. Peng Ziyi described it with the rise and fall of yang energy in the four seasons of the year and the changes of the 24 solar terms in "Ancient Chinese Medicine of Circular Movement". In short, the circulation of one qi is one of the basic laws between heaven and earth, and it is everywhere and all the time. If we can understand and apply this law, we will be able to better recognize and understand the nature of life and the laws of operation between heaven and earth. The theory of traditional Chinese medicine emphasizes the correspondence between heaven and man, that is, the harmony and unity between man and nature. For those who have a better sense of qi, they can sometimes feel the qi mediated by the left rising and right descending in their bodies, which is the same as the qi of heaven and earth. This is the principle of the unity of heaven and man, because heaven and earth themselves also follow this law of operation, and there is no difference between all things. From the level of qi, they are all integrated. The laws of the circulation of one qi are everywhere and have the same effect on all things within the five elements. When there is stagnation or change at any level, at any stage of the breath, the whole system will be affected. That's why the five fortunes and six qi will have an impact on people, and there are rules to follow. This is the case with modern science mentioning that a butterfly in South America may cause a tornado in the United States a few months later. Taking the stagnation of wood qi in the circulation of one qi as an example, the liver will feel stagnation at the level of the five organs, at the level of the meridians, the liver meridian will be stagnant, and at the level of cells, the wood qi part of the cell will also feel stagnation. In the environment that people are in, there will also be a stagnant wood atmosphere in the house. This stagnant wood qi is completely consistent at all different levels, and it influences each other. Therefore, we can solve the same problem in different ways at different levels. For example, at the level of the five internal organs, we can adjust our diet and sleep schedule to improve the health of our liverAt the level of the meridians, the liver meridians can be unblocked by massage or acupunctureAt the cellular level, the health of cells can be improved by regulating the wood gas inside the cells;In the environment where people live, the circulation of wood gas can be improved by adjusting the indoor environment. Although these methods are different, they all serve the same purpose - to improve the circulation of wood qi and thus promote the health of the human body. We use the Chinese medicine of soothing the liver and shengda for the patient**, and this **method can effectively ** the disease. At the same time, we also recognize the importance of the patient's mood, so we actively delight the patient's mood, which also has the best effect. In addition to medication and psychology, we also pay attention to the patient's living environment. We improve the living environment of our patients and make their rooms more relaxed and bright, which not only helps to alleviate the condition, but also improves the quality of life of our patients. It will be better to do it in the morning when the yang energy is rising**. This is because Yang Qi is an important driving force for the body's vital activities, and performing ** at this time can better help patients recover their health. We use different methods, but the purpose is all for the sake of Shuda wood. These methods are different, but they all end up achieving the same effect. Therefore, we need to have a clear understanding of the level of the circulation, so that our means will be more abundant and flexible. For the different levels of the system of one qi circulation, our minds can understand it. This experience is not felt by our hands, but by our perception and understanding. It is precisely because of this discriminating mind that we are able to perceive the different levels of the circumference of one qi. In this system, people are like entering a huge network of relationships. In this network of relationships, everything is netted in it, and we can't help but live our lives with the system. This system is like a dense web that nets everything in it, so we have a lot of things in this world that we actually can't help ourselves. If we don't want to be affected by the circulation, I'm afraid not. As long as we live within these five elements, we will not be able to get rid of this bondage. However, we can better cope with life's challenges and difficulties by understanding and mastering the laws of one-qi circulation. 
The principle of "harmony with yin and yang, and adjustment in the four seasons" taught by the Yellow Emperor's Neijing actually requires us to conform to the law of change of the circulation of one qi. One Qi Circulation is a central concept in TCM theory, which represents the flow and change of all things in heaven and earth. Whether it is health preservation or cure, we all need to follow this rule. As the idiom "those who follow the heavens prosper, and those who go against the heavens perish", only by conforming to the laws of nature can we achieve success and health. The theories of Chinese medicine are indeed very broad and perfect, and it can not only guide us to understand everything in heaven and earth, but also can be used to guide us in curing diseases. However, what is actually used to heal diseases is only a small part of the theory of TCM. If we can deeply understand the system of one qi circulation, not just a theoretical model, but a real system, then it should be more than enough to become a good doctor. Because it is not just a simple thing to guide us to see a doctor, it also involves many other aspects. Of course, this is only my personal understanding of the theoretical system of TCM and the hierarchical structure of the circulation of one qi. There may be a lot of inaccuracies in understanding, but the main reason for bringing it up is to communicate with everyone and learn from each other's Xi. I believe that as long as we continue to learn and Xi explore, we will be able to better understand and apply the theories of Chinese medicine and make greater contributions to the cause of human health. Today, we can be here to go around the theory, inseparable from the ancients to inspire and guide us. Through their wisdom and efforts, these ancient physicians and philosophers have left us many valuable classics, such as "The Yellow Emperor's Inner Canon", "The Difficult Canon", "Shennong's Materia Medica", "Treatise on Typhoid Fever" and "The Source of the Four Sacred Hearts". These writings are like beacons of navigation, pointing us in the way forward and helping us to keep moving forward on the path of medicine.
In these classic works, the theory of the flow of qi is clearly expounded and becomes an important part of the basic theory of traditional Chinese medicine. One Qi Circulation, as the name suggests, refers to the circulating flow of Qi in the human body, and this flow is the basic characteristic of life activities. Mr. Huang Yuanyu systematically expounded the theory of the circulation of one qi in "The Source of the Four Sacred Hearts", which provides an important idea for us to understand the essence of Chinese medicine.
We should be grateful to these ancient sages, to the Yellow Emperor, Qi Bo, Bian Que, Zhang Zhongjing, and Mr. Huang Yuanyu. It is they who have depicted a clear framework for us to learn Xi Chinese medicine, and then to be able to go to the hall and swim in the wonderful realm of the flow of one qi. Their wisdom and contributions will always shine on the path of TCM development and inspire us to continue to explore and innovate.
In the process of circulating in one breath, we should maintain a sense of reverence and respect the wisdom and contributions of the ancients. At the same time, we should continue to learn Xi and practice, deeply understand the theory and connotation of the flow of one qi, and contribute to the development and progress of traditional Chinese medicine. Only in this way can we better inherit and carry forward the excellent tradition of traditional Chinese medicine and make greater contributions to the cause of human health.