Lu Dongbin said: "Heaven and earth are incarnated by the sense of all things. Therefore, it is pointed out that the sympathy of yin and yang is the change and fundamental condition of the transformation of all things, and its "combination", "connection", and "induction" all have the meaning of interaction and mutual influence. Therefore, it can be said that the interaction between heaven and earth, yin and yang is the origin of the generation and change of all things. In the natural world of the universe, the same is true of the laws of the formation of things. The yang qi of the sky descends, the yin qi of the earth rises, and the yin and yang qi sympathize, giving birth to all things, and forming rain and fog, thunder and lightning, rain and dew, sunlight, air, and who sympathize with each other, and the life form can be generated. Bathed in the sun and rain, living things can develop and grow. In human beings, men and women are refined, new living beings are born, passed down from generation to generation, and human beings are able to reproduce. Therefore, if there is no sympathetic movement of yin and yang, there is no nature, and there is no life. It can be seen that the sympathy of yin and yang is the basic condition for the production of life activities. ”

Xuan Chu secretly glanced at Xiao Tianshu, Xiao Tianshu was quite boring, and said embarrassedly: "Hehe, in fact, yin and yang immediately refer to all things or phenomena in the world There are two opposing aspects of yin and yang, such as up and down, heaven and earth, rising and descending, etc., among which the upper is yang, and the subordinate is yin; The sky is yang, and the earth is yin; Ascend to yang, descend to yin. The opposing yin and yang are interdependent, and neither can exist separately from the other. If the top is yang, the bottom is yin, and if there is no top, it doesn't matter if there is no bottom; Hot is yang, cold is yin, and without cold there is no heat. Therefore, it can be said that Yang is dependent on Yin, and Yin is dependent on Yang, and each side has the existence of its opposite other as its own condition of existence. This is the mutual root of yin and yang. Hehe, actually, that's what I want to say. ”

Hui Chu said: "The antagonistic constraints and mutual use of yin and yang are not immutable, but always in a process of growth and change, and yin and yang reach a dynamic balance in this growth and change. This change in growth and ebbs is absolute, while the dynamic equilibrium is relative. For example, during the day, the physiological function of the human body is also dominated by excitement; At night, the physiological functions of the body are mainly inhibited. From midnight to noon, the yang energy gradually flourishes, and the physiological functions of the human body gradually shift from inhibition to excitement, that is, yin and yang grow; From noon to midnight, the yang energy gradually declines, and the physiological function of the human body gradually changes from excitement to inhibition, which is the yang and yin growth. ”

Lu Dongbin said with a smile: "What the apprentice said is right, the two sides of yin and yang can also transform each other under certain conditions, and reaching the extreme is the opposite of the extreme." For example, in some acute fever diseases, due to the extreme heat toxicity, a large amount of body vitality is consumed, and in the case of continuous high fever, symptoms such as sudden drop in body temperature, cold limbs, and weak pulse can occur, which is the manifestation of the transformation from yang to yin. It can be said that the growth and decline of yin and yang is a process of quantitative change, and the transformation of yin and yang is a process of qualitative change. The growth and decline of yin and yang is the premise of the transformation of yin and yang, and the transformation of yin and yang is the result of the growth and development of yin and yang. ”

Xuan Chu said: "Then Master, in some TV series, in ancient wars, such as Zhuge Liang and Zhou Yu, they are all good at magic and arranging troops, are people like them also cultivators?" Or is it that the legend says that they were originally immortals, so they can invite divine soldiers and foreign ministers? ”

Lu Dongbin said with a smile: "The school that studied military theories and engaged in military activities in the pre-Qin and early Han dynasties is one of the four major schools of military affairs. The so-called soldier yin and yang family, there is a classic description in the "Hanshu Art and Literature Chronicle": "Yin and yang, with the times, push the punishment of virtue, with the fight, because of the five victories, the fake ghosts and gods think that the helpers are also." "Shun Shi, Criminal Virtue, Fighting, and Five Victories show that the Yin and Yang family of soldiers is actually the application or extension of various forms of magic in military theory and practice under the framework of the five elements of Yin and Yang; And "fake ghosts and gods help" means that all the military applications with the help of ghosts and gods can also be classified into the scope of military yin and yang. Bing Yinyangjia not only contains a variety of military techniques in the past, such as divination, astrology, cloud fortune, dream telling, sacrifice, prayer, curse, aversion to victory and all kinds of miscellaneous occupation, witchcraft, etc., but also different from the previous military arts, Bing Yinyangjia is the five elements of Yin and Yang military techniques, and its appearance marks a new stage in the history of Chinese military arts......"

According to the records of the Hanshu Art and Literature Chronicles, the soldiers are divided into four categories: military power strategists, military situation strategists, military yin and yang strategists, and military technicians. "Hanshu Art and Literature Chronicles" "Bing Yin and Yang Family" has 15 articles of "Chang Hong", which are not available today. Lu Simian's "Introduction to Pre-Qin Academics: Soldiers" said: "The book of yin and yang and skills is now dead. The book of power and situation is also extraordinary. About the Yin and Yang family saying that when the sky is concerned, it must also involve superstition. Soldier skills are the most practical. However, the present and the ancient are different, so they will not be passed on to the future. The words of the military situation are also different from the present and the ancient. However, its principles are more interconnected, so its existence is still more understandable by future generations. As for the military strategy, it is dedicated to the principle of using soldiers, and there is no difference between the present and the ancient. The words of the military family can be examined from the ancient academic thinkers, and it is inferred that this family is in charge. ”

Xuan Chu said: "Oh, it turns out that cultivating immortals has penetrated into all fields......

Xiao Tianshu said with a smile: "Dr. Wang Ying, the author of the "Technical Guide to Behavioral Medicine for Diabetes", made the following analysis of yin and yang after teaching the five elements: the philosophy of yin and yang studies the way of heaven and earth, the law of the operation of all things, the law of life change, the internal constraints and support relationship of life, and the source of vitality. These five points are a refinement of the content of the theory of yin and yang and the five elements expounded in the "Yellow Emperor's Neijing". ”

The theory of yin and yang is used to explain the creation and change of heaven and earth. Ancient China believed that after chaos, Qingyang floated up to the sky and turbid yin sank to the earth, so Qingyang was the sky and turbidity was the earth. It is also believed that the earth's qi rises as clouds, and the weather descends as rain ["The Yellow Emperor's Neijing Yin and Yang should be like the Great Treatise": "Therefore, Qingyang is the sky, and turbidity is the earth. The earth is cloudy, the weather is rain, the rain is out of the earth, and the clouds are out of the weather, and this process and the process of the formation of heaven and earth constitute the material cycle between heaven and earth.

Chu said: "How do you know about diabetes? ”

Xiao Tianshu smiled: "Hehe, my grandmother is diabetic, so I paid more attention to this aspect of the situation......

Lu Dongbin said with a smile: "All things are born, all spirits, and everyone has a role for everyone......

Chu said: "That is to say, everyone has a mission, right? When the emperor has the mission of the emperor, and the doctor has the mission of the doctor, then don't we also have a mission in cultivating? ”

Lu Dongbin smiled: "That's true, so it makes sense to say that it's an immortal......

Xuan Chu said with a smile: "That proves that Zhuge Liang is the reincarnation of an immortal, otherwise how can he be like an immortal, and his magic calculation is so accurate?" Hehe, sure enough, I didn't guess wrong! Hehe......"