1. 我们先说一下练气的前提。宋·寇宗奭《本草衍义》说：「夫人之生以气血为本，人之病未有不先伤其气血者。」意思是只有人的气血先出了问题，疾病才会跟着来。所以《灵枢·脉度》里面说：「气不得无行也，如水之流。」就是说：气跟水一样，一定要流动，否则就会污浊腐败，成为致病之源。《内经·灵枢经脉》说：「经脉者，所以能决生死，处百病，调虚实，不可不通。」又说：「气血淤阻，病由之生，气血通则百病愈。」说明气必须依靠经络、气脉来运行的，如果经脉不通，那气血运行就会受阻，所以开通经脉是练气的首要任务，当然开通经脉是需要特定的外形。易太极的第一体系准确性就是让经脉畅通的。经脉不通，则采气、行气等工作皆难以进行。

1. Let's first talk about the prerequisites for cultivating Qi. Kou Zongxi in the Song Dynasty, in his book "Explanation of the Compendium of Materia Medica," said: "The essence of human life lies in Qi and blood, and no illness can occur without first harming the Qi and blood." This means that only when there is a problem with a person's Qi and blood will diseases follow. Therefore, it is said in "Channel of the Spiritual Pivot": "Qi must flow continuously, just like water flowing." This means that Qi, like water, must flow; otherwise, it will become polluted and rotten, becoming a source of disease. "The Canon of Internal Medicine" says: "Channels are the means to determine life and death, to treat various diseases, to adjust excess and deficiency, and they cannot be blocked." It also says: "Obstruction of Qi and blood leads to the birth of disease, and the flow of Qi and blood restores health." This shows that Qi must rely on meridians and Qi channels for movement. If the meridians are blocked, the movement of Qi and blood will be obstructed, so opening up the meridians is the primary task of cultivating Qi. Of course, opening up the meridians requires specific external forms. The first system of Yi Taiji emphasizes the accuracy of channel畅通, as the obstruction of meridians makes it difficult to carry out tasks such as absorbing and circulating Qi.

2. 每一个动作都要体现节节贯穿，因为节节贯穿是太极拳最显著的特点，很多人都知道在《拳论》中有“其根在脚，发于腿、主宰于腰、形于手指”这句话，但要做到知行合一也不是件简单的事，首先要知道这二句话的真正含义，其根在脚，关键是怎样有根？如果在拳架中不吻合骨骼最佳受力状态，那就很难有根。同时又因为骨节没对，也没办法一节一节贯穿出来，所以就没办法体现节节贯穿。另外，在做节节贯穿时的要领是一节一节贯穿的，也就是说在做节节贯穿时是有虚实变化的，比如从肩贯穿到肘时，这时肘为实，而肩要从实转为虚，贯穿到手时，肘就又从实转为虚。在一个手臂上就有实有虚，实中有虚，虚中有实，这样又吻合了太极的原理，俗话说无处不太极，就是说太极就是不断的在虚实变化。又吻合了太极拳是相互矛盾而统一的运动这一说法。

2. Every movement should reflect the principle of "gradual progression," as this is the most distinctive characteristic of Tai Chi. Many people are aware of the phrase in the " Boxing Treatise " that reads, "Its root is in the feet, originates from the legs, is controlled by the waist, and manifests in the fingers." However, to truly embody this principle in action is not an easy task. Firstly, one must understand the true meaning of these two sentences. The root is in the feet, but the key is how to establish a firm foundation. If the posture of the拳架 does not align with the optimal stress distribution of the bones, it will be difficult to establish a root. Moreover, since the bones and joints are not aligned, it is impossible to progress through each section, and thus, the principle of "gradual progression" cannot be demonstrated. Additionally, the key to practicing "gradual progression" is to progress through each section sequentially, meaning that there are changes in the concept of "yinyang" (the interplay of emptiness and substance) during the practice. For instance, when progressing from the shoulder to the elbow, the elbow becomes substantial, while the shoulder should transition from substantial to empty, and when progressing to the hand, the elbow should again transition from substantial to empty. In one arm, there is a blend of substance and emptiness, with substance within emptiness and emptiness within substance. This aligns with the principles of Tai Chi, as the saying goes, "There is no place where Tai Chi is not present," meaning that Tai Chi is constantly changing between substance and emptiness. This also aligns with the concept that Tai Chi is a movement that is both contradictory and unified.

3. 抽象地讲，当对方以水平力击来，依据数学公式：水平力×COS90°=O，所以竖力破横力，可以小力破大力，当然，这里摩擦力忽略未计。

3. Abstractly speaking, when the opponent strikes with a horizontal force, according to the mathematical formula: horizontal force × COS90° = 0, therefore, the vertical force can break the horizontal force, and it is possible to defeat a strong force with a weak force. Of course, frictional force is ignored and not taken into account here.

4. 对照医学：“太极”与医学原理同出一辙，通过练拳使五脏六腑、四肢百骸得到自我按摩，从而达到活气血，通经络，调整神经系统，提高身体免疫力。练拳多受累，少受罪，达到到强身健体，益寿延年的作用。

4. Comparative Medicine: "Tai Chi" shares the same principles as medical science. By practicing the martial art, the internal organs and limbs receive self-massage, thereby achieving the effect of activating the vital energy, unblocking the meridians, adjusting the nervous system, and enhancing the body's immunity. Practicing Tai Chi is more taxing but less harmful, leading to the benefits of strengthening the body and extending longevity.

5. 所有太极拳的经典拳论上说，太极拳是根据“太极的阴阳学说，结合中医的经络骨骼学说，融入道家的导引吐纳之术”创立的。所以说太极拳真正的核心是以太极的阴阳学说为理论依据，中医的经络骨骼学说为生理依据，以道家的导引吐纳之术为练气的方法，以武术拳架为载体的一种性命双修的拳法。另外，我们再看太极拳著作的经典理论，太极拳的运动特点为：节节贯穿、不丢不顶、以柔克刚、避实就虚、等等。

5. All the classic treatises of Tai Chi say that Tai Chi was founded based on the theory of Tai Chi's yin and yang, combined with the theory of the meridians and bones in traditional Chinese medicine, and integrated with the techniques of Qigong and breathing exercises from Taoism. Therefore, the true core of Tai Chi is a martial art that practices both physical and spiritual cultivation, with the theory of Tai Chi's yin and yang as its theoretical basis, the theory of the meridians and bones in traditional Chinese medicine as its physiological basis, the techniques of Qigong and breathing exercises from Taoism as the method of cultivating Qi, and the martial arts form as its carrier. Furthermore, if we look at the classic theories in Tai Chi literature, the characteristics of Tai Chi's movements include: the continuity of each movement, not losing nor opposing, overcoming the hard with the soft, avoiding the strong and seeking the weak, and so on.

6. 太极拳是拳，在古代拳就是一种用于搏击的技术。拳有内家、外家之分；拳的种类有很多，但在以前有共同的一点是必须有技击的含义。不能用于技击的，就不能称之为拳。拳是一种载体，它可以去承载不同的思想、文化而变成独具特色的拳种。在当今社会，拳更赋予的是一种精神、一种文化。拳是技术，不只是架子或套路，它必须区分于操或舞蹈，它一定在吻合人体的生理基础上，有非常完美的运动曲线，才能体现拳术的魅力。所以对任何拳术都有“差之毫厘，缪以千里”之说。

6. Taijiquan is a form of boxing, and in ancient times, boxing was a technique used for combat. There are internal and external schools of boxing; there are many types of boxing, but in the past, they all shared a common point that they had to have a combat significance. That which cannot be used for combat cannot be called boxing. Boxing is a carrier, which can carry different ideas and cultures to become a unique boxing style. In today's society, boxing is more about a spirit and a culture. Boxing is a technique, not just postures or routines. It must be distinguished from exercises or dances. It must have a very perfect movement curve that is in harmony with the human body's physiological foundation in order to reflect the charm of boxing techniques. Therefore, there is a saying about any boxing style that "a difference of a hair's breadth can lead to a mistake a thousand miles away."

7. 迈步如猫行，运劲如抽丝。

7. Walk as a cat, exert force as if pulling silk.

8. 大家都知道太极拳是内家拳，内家拳就必须产生内气，而现在几乎所有的太极拳的书上都很少讲到产生内气的方法。所以很多习练者都迷失了方向，甚至练了一辈子都不知道气是什么。下面我着重阐述一下太极拳的“练精化气，练气化神”的原理和习练方法：

8. Everyone knows that Tai Chi is an internal martial art, and internal martial arts must generate internal energy. However, almost all books on Tai Chi barely discuss the methods for generating internal energy. Therefore, many practitioners are lost and even after a lifetime of practice, they don't know what "Qi" (vital energy) is. Below, I will focus on elaborating on the principles and practice methods of Tai Chi's "refining essence into Qi, and refining Qi into spirit":

9. 关节不松，柔劲不来。

9. If the joints are not loose, the soft strength will not come.

10. “太极拳”汇集了佛学，道学，儒学，医学，武学的精髓，将他们有机地运化于一体，是多代人锲而不舍地钻研、实践的结晶。

10. Tai Chi Chuan integrates the essence of Buddhism, Taoism, Confucianism, medicine, and martial arts, organically blending them into a unified whole. It is the crystallization of the tireless research and practice of generations.

11. 拳技以沉着为本。

11. Boxing skills are based on composure.

12. 肘不离肋，手不离心。

12. The elbow should not leave the rib, and the hand should not leave the heart.

13. 心理学：“太极拳”还可以达到身心的修练。练得心平气和，荣辱不惊，从容镇静定，随机应变，便人的潜能得到充分发挥。

13. Psychology: "Tai Chi" can also achieve the cultivation of both body and mind. By practicing calmness and composure, not being moved by honor or disgrace, being composed and calm, adapting to changing situations, one's potential can be fully realized.

14. 太极本自然，人意莫强求。

14. Tai Chi comes from nature, and one should not force one's will against it.

15. 手是两扇门，全凭腿踢人。

15. The hands are two doors, relying solely on the legs to kick others.

16. 在太极推手中，运用“沾粘连随”技艺，不丢不顶，其中体现了摩擦力的存在与运用。

16. In Tai Chi push hands, the skill of "adhering, connecting, and following" is employed, without losing or opposing, which reflects the existence and application of frictional force.

17. 不怕千招会，就怕一招精。

17. It doesn't matter how many moves you know; what matters is mastering one move.

18. 根据中国古老的道家养生理念「练精化气，练气化神，练神还虚」这个修炼公式加以检视，我们可以得知：修练会造成精、气、神的改变，换句话说，精、气、神三者的成分、功能各自不同，精不等于气，气也不等于神。它还告诉我们经过修练，精可以变化为气，再由气变化为神。从文字上观察，这个公式包含了二个重点：（

18. By examining the ancient Taoist concept of health preservation in China, "refining essence into qi, refining qi into spirit, and refining spirit into emptiness," this cultivation formula reveals that: cultivation can change the essence, qi, and spirit. In other words, the composition and function of essence, qi, and spirit are different from each other; essence is not equal to qi, and qi is not equal to spirit. It also tells us that through cultivation, essence can be transformed into qi, and then qi can be transformed into spirit. Observing from the text, this formula contains two key points:

19. 练武不活腰，终究艺不高。

19. If you don't flex your waist while practicing martial arts, your skills will never be high.

20. 在此，必须说明的是，并非太极拳“天下第一”，无论哪门武术都有独到之处，绝不能以拳种论高低。各门武术都是经过千锤百炼流传下来的。

20. It must be clarified here that Tai Chi Chuan is not the "Number One Martial Art in the World." Every martial art has its unique characteristics, and it is absolutely not right to judge the value of martial arts based on the style. All martial arts have been passed down through countless trials and refinements.

21. 拳不在多，唯在熟。

21. The key to boxing is not in the number of punches, but in their skillfulness.

22. 静如山岳，动若江河。

22. Still as mountains, dynamic as rivers.

23. 饭后散步，不进药铺 ;

23. Take a walk after meals; don't enter the pharmacy.

24. 太极推手中“螺旋缠绕”的运行，是利用多种矢向力，在运动中随时变化，可达到“易化能攻”的效果。

24. In Tai Chi Pushing Hands, the operation of "spiral entanglement" utilizes various directional forces, which change at any moment during the movement, and can achieve the effect of "easing energy to attack."

25. 上床萝卜下床姜，不劳医生开药方 ;

25. When you get into bed, eat radish; when you get out of bed, eat ginger; no need for a doctor to prescribe medicine.

26. 在实战中，双方力的角度随时在变化，不可能用数学公式将运行全过程精确完整地表达出来。但是，可以用身心感受到，做出下意识的反应。

26. In actual combat, the angle of force between the two parties is constantly changing, and it is impossible to precisely and completely express the entire process of operation using mathematical formulas. However, one can feel it with the body and mind, and react subconsciously.

27. 为大于微，图难于易。

27. Embrace the great by starting with the small, and seek to resolve difficulties through ease.

28. 而“太极”是一个哲学概念，是华夏人类文明的结晶，是中国传统文化的根基。太极图是对太极形象而又贴切的概括。从太极图上看：太极呈一圆，圆中有黑白两部分，俗称“阴阳鱼”，两鱼互抱，循环往复；白鱼中有一黑眼，黑鱼中有一白眼，代表了“阴中有阳，阳中有阴”。它维系了阴阳的平衡。因此，在太极拳中必须能够体现出太极的阴阳之理，需知道如何通过在动作的运动过程中保持身体各个部位的阴阳变化和阴阳互变，要知道如何做到“阴中有阳，阳中有阴”。太极拳就是把这个太极的思想融入的拳中而成为太极拳的，就是用拳作为载体、用动作来展现太极文化和思想的，所以有人把太极拳称为“哲拳”不是没有道理的。所以既然被称为“太极拳”，她必须包含了“太极”和“拳”的两层含义，也就是必须把太极的阴阳之理融入到拳里面，才能称得上真正的太极拳。而不是缓慢地做一些看似打拳的动作就是太极拳了。

28. While "Taiji" is a philosophical concept, it is the crystallization of the civilization of the Chinese nation and the foundation of traditional Chinese culture. The Taiji diagram is a vivid and accurate summary of the Taiji image. From the Taiji diagram, it can be seen that Taiji takes the form of a circle, with black and white parts inside, commonly known as the "Yin and Yang fish," which embrace each other in a cycle; the white fish has a black eye, and the black fish has a white eye, representing "Yin contains Yang, and Yang contains Yin." It maintains the balance of Yin and Yang. Therefore, in Tai Chi, it is necessary to embody the principle of Taiji's Yin and Yang, to know how to maintain the changes and mutual transformations of Yin and Yang in various parts of the body during the movement of the actions, to know how to achieve "Yin contains Yang, and Yang contains Yin." Tai Chi integrates this Taiji thought into the boxing, becoming Tai Chi, which uses boxing as a carrier and actions to demonstrate Taiji culture and thought. That's why calling Tai Chi "Philosophical Boxing" is not without reason. Therefore, since it is called "Tai Chi," it must contain the two meanings of "Taiji" and "boxing," which means that Taiji's principle of Yin and Yang must be integrated into the boxing to be truly called Tai Chi. It is not enough to simply perform slow movements that look like boxing to be considered Tai Chi.

29. 说「练精化气」，那么「精」是什么？在生活中当我们身体状况好的时候称为「精力充沛」，身体状况差的时候称为「精疲力尽」，这表示「精」是供给身体活动力的能量，它可增可减，是一种常会消耗、常需补充的元素。《黄帝内经》说：「人始生，先成精。」又说：「夫精者，身之本也。」再进一步指出：「人生有形，不离阴阳。」由这三句话的相互关系得知，精是构成身体的基本元素；精是阴气、阳气结合的产物；精是强健身体的要素；精是建构人体五脏六腑、四肢百骸、肌肉皮毛的基本元素。中医认为，五脏六腑都有精的存在，所以「精」是气的一种，它关系到四肢、五脏的健康及六识感官的灵拙。《内经》说：「真气者，所受于天，与谷气并而充身者也。」就是说人是能从天地之间采取的「真气」，可以与食物中的「谷气」合流，用来充足我们身体的精气。《内经》又说：「真气着，经气也。」就是说精气行走于血管、经脉之中，精含动能，它有推进的动能，所以这一类的气都归属于精。

29. When it is said that "the refinement of essence transforms into Qi," what is "essence"? In life, when our physical condition is good, we call it "full of vitality," and when our physical condition is poor, we call it "exhausted," which indicates that "essence" is the energy that supplies the body's vitality. It can increase or decrease, and it is an element that is often consumed and in need of replenishment. The Yellow Emperor's Inner Canon says, "When a person is first born, essence is formed first." It also says, "Essence is the foundation of the body." Furthermore, it points out, "Life has form and is inseparable from Yin and Yang." From the interrelation of these three statements, we understand that essence is the fundamental element that constitutes the body; essence is the product of the combination of Yin and Yang; essence is the element that strengthens the body; and essence is the basic element for constructing the five internal organs, six bowels, limbs, bones, and muscles and skin. In traditional Chinese medicine, it is believed that essence exists in all the five internal organs, so "essence" is a type of Qi that is related to the health of the limbs and five internal organs and the acuteness of the six senses. The Yellow Emperor's Inner Canon says, "True Qi is the Qi received from heaven, which, along with grain Qi, fills the body." This means that humans can absorb "true Qi" from the heavens and earth, which can merge with the "grain Qi" in food to replenish the essence and Qi in our bodies. The Yellow Emperor's Inner Canon also says, "True Qi is the Jing Qi." This means that the essence and Qi flow through the blood vessels and meridians, containing kinetic energy, which has the driving force to propel. Therefore, this kind of Qi is classified as essence.

30. 在此，仅以亲身经历，阐述“太极拳”的功用。

30. Here, I will simply elaborate on the functions of Tai Chi Chuan based on my own personal experience.

31. “太极拳”包含了哲学、心理学、力学、美学等诸多学科。

31. Tai Chi Chuan encompasses various disciplines such as philosophy, psychology, mechanics, and aesthetics.

32. 对照佛学：联系“太极拳”要有超凡脱俗的心境，似老僧“入定”，无思无我，坐禅入静，调身，调心，调息，静极生动，体内自然产生规则有序的内气沿任督二脉运行，气通身健。

32. In comparison with Buddhism: Practicing Tai Chi requires an extraordinary, transcendent mindset, akin to an elderly monk "entering a meditative state." With no thoughts and no sense of self, one sits in meditation and enters tranquility, adjusting the body, adjusting the mind, adjusting the breath, where tranquility gives rise to vitality. Within the body, natural, orderly internal energy flows along the conception and governing meridians, with the flow of energy ensuring good health.

33. 练拳须明理，理通拳法精。

33. To practice boxing, one must understand the principles; when the principles are understood, the boxing techniques become refined.

34. 拳打万遍，神理自现。

34. Strike a thousand times, and the divine principle will manifest itself.

35. 哲学：“太极拳”充满了丰富的哲学思想。比如，一动即分阴阳，内外对应，左右相系，上下相随，物极必反等现象。这正是对立统一的体现。

35. Philosophy: Tai Chi Chuan is filled with rich philosophical ideas. For example, the phenomenon that movement divides yin and yang, the correspondence between inner and outer, the connection between left and right, the following of the upper and lower, and the reversal of extremes, etc. This is exactly the embodiment of the unity of opposites.

36. 三天不吃青，两眼冒金星。 欲得长生，肠中常清。

36. If you don't eat green food for three days, your eyes will see stars. To attain longevity, keep your intestines clean.

37. 千保健，万保健， 心态平衡是关键。

37. A thousand healths, ten thousand healths, maintaining a balanced mindset is the key.

38. 太极的“四两拨千斤”，体现了弧形运动中的“切向力”。

38. Tai Chi's "using four ounces to move a thousand pounds" embodies the "tangential force" in the circular motion.

39. 拳可慢，不可滞。

39. The punch can be slow, but it must not be stiff.

40. 练拳不练功，到老一场空。

40. To practice boxing without training the internal energy, one will find nothing in the end.

41. 手随身动，步随身换，逢转必沉。

41. The hand moves with the hand, and the step changes with the body. Whenever there is a turn, there must be a deep, sinking feeling.

42. 有内无外难成拳，有外无内难成术。

42. It is difficult to form boxing with internal power but no external manifestation, and it is also difficult to master a skill with external form but no internal essence.

43. 每一个动作必须能够完全符合经典拳论和太极拳创立时的原理要求，即每招每式应具有太极阴阳之理，周身上下、手脚身背处处皆应虚实分明、虚中有实、实中有虚，虚实不断转换。哪怕是最简单的两手打开，其实都有开中有合的。如果不明阴阳之理，那就不能称太极。

43. Every action must fully conform to the principles of classical boxing theory and the principles at the time Tai Chi was founded, meaning that every movement and posture should embody the theory of Tai Chi's yin and yang. The entire body, from head to toe, hands, feet, and back, should all be clearly differentiated between emptiness and fullness, with emptiness containing fullness and fullness containing emptiness, continuously transitioning between the two. Even the simplest action of opening both hands actually contains a combination of opening and closing. If one does not understand the theory of yin and yang, then it cannot be called Tai Chi.

44. 对照武学：“太极拳”在武术方面的造诣，是众所周知的。但也遭到不少非议，有人讲：“太极拳锻炼身体还可以，但是在博击方面，恐怕就徒有虎名了。”

44. Comparison of Martial Arts: The expertise of Tai Chi in the realm of martial arts is well-known. However, it has also faced much criticism. Some say, "Tai Chi is good for physical exercise, but in terms of combat, it may just be a name with a roar but no real substance."

45. 腰送客走，胯坐帅府。

45. The waist carries guests away, while the hip sits in the Marshal's Mansion.

46. 每个动作应符合人体骨骼的最佳受力点的原则才能保证经络的通畅。太极名家陈鑫在他的著作《陈氏太极拳图说》中说练太极拳很重要的一点是“骨节要对”。“骨节要对”其实就是吻合人体骨骼最佳受力状态。因为在拳架中吻合人体骨骼的最佳受力状态，就是把桩功直接融入拳架当中，这又吻合了以前所说的练太极拳要桩步走架的说法。这时手的位置、脚的位置、身体的方向，有时差一厘米都不行。就是所谓的“差之毫厘，缪以千里”，只有在拳架中有了这些特定的位置、角度、方向的要求后，才能意味着拳跟操和舞蹈是有本质的区别的！所谓拳打万遍自显神通，是指打准确的拳，广播操做一辈子都不可能变成拳的。

46. Every movement should conform to the principle of the optimal stress points of the human skeletal system to ensure the smooth flow of meridians. Tai Chi master Chen Xing said in his work "Explanation of Chen's Tai Chi Chuan Diagrams" that an important point in practicing Tai Chi is that "the joints must be aligned." "The joints must be aligned" actually refers to matching the optimal stress state of the human skeletal system. Because in the Tai Chi form, matching the optimal stress state of the human skeletal system directly integrates the桩 (stake) practice into the form, which also aligns with the previously mentioned approach of practicing Tai Chi by walking the postures. At this point, the position of the hands, the position of the feet, and the direction of the body, even a difference of one centimeter is not allowed. This is what is called "a little difference can lead to a thousand miles of error." Only after having these specific positions, angles, and directions in the form can it mean that Tai Chi is fundamentally different from calisthenics and dance! The saying "with endless practice, Tai Chi reveals its magic" refers to practicing the Tai Chi form accurately; doing calisthenics for a lifetime will never transform into Tai Chi.

47. 「练」这个字就是再制、精制的意思，因此，我们要研究精变成气、气变成神的过程和方法；（

47. The character "练" means to refine or refine further, so we should study the process and methods of refining essence into qi, and qi into spirit.

48. 动贵短，意贵远，劲贵长。

48. Movement values brevity, intention values distance, and strength values length.

49. 初学三年，天下去得；再学三年，寸步难行。

49. Three years of study and you can go anywhere in the world; another three years of study and it's hard to take a single step.

50. 拳为武艺之源，功为百艺之基。

50. Fists are the source of martial arts, and skill is the foundation of all arts.

51. 拳无拳、意无意，无意之中是真意。

51. Without a fist, without intention, the true intention lies in the absence of intention.

52. 由着熟而渐悟懂劲，由懂劲而阶及神明。

52. From being accustomed and gradually understanding the strength, one progresses to the level of achieving spiritual enlightenment.

53. 打人如拥抱，手到步要到，步到身要拥。

53. To hit is like to embrace, the hand must reach and the step must follow, the step must reach and the body must embrace.

54. 开合虚实，即为拳经。

54. The opening and closing of the hard and soft, that is the essence of boxing classics.

55. 最佳答案 这问题……

55. Best Answer This question...

56. 太极推手中的擒拿发放技巧，体现了杠杆原理。

56. The skill of capturing and releasing in Tai Chi Pushing Hands embodies the principle of leverage.

57. 拳以眼为尊，眼为心之苗。

57. The fist respects the eye, and the eye is the sprout of the heart.

58. 据以上所述，练太极拳或教太极拳必须要搞明白的几个原则：

58. According to the above, several principles must be understood when practicing or teaching Tai Chi Chuan:

59. “引进落空，合即出”是太极拳推手的特色之一。当对方用力打来，我粘住对方的来力，顺势让空，此时，我力与彼力方向相同，速度一致。当对方感到要失去重心，欲调中正时，由于惯性的作用，无法骤然刹住或者马上改变方向。此时，我则借力发力，对方必被我放出无疑。

59. "Failing to bring down, the opponent is immediately sent away" is one of the characteristics of Tai Chi Chuan sparring. When the opponent exerts force to strike, I stick to their incoming force and let go with the momentum. At this moment, my force is in the same direction and speed as the opponent's. When the opponent feels they are about to lose their balance and want to adjust to a central position, due to the effect of inertia, they cannot suddenly stop or change direction immediately. At this point, I take advantage of their force to exert my own, and there is no doubt that the opponent will be sent away by me.

60. 对照道学：道家讲炼丹田气，可运用“站桩”，养先天之气，使内气充盈，气归丹田，久而久之，内功加深。

60. Comparing Taoism: Taoists talk about refining the Qi of the丹田, which can be achieved through practicing "standing post" to nourish the primal Qi, making the internal Qi abundant, and guiding the Qi back to the 丹田. Over time, the internal cultivation deepens.

61. 练则有，不练则无。

61. Use it or lose it.