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The Yijin Jing (simplified Chinese: 易筋经; traditional Chinese: 易筋經; pinyin: Yìjīnjīng; Wade–Giles: I Chin Ching; literally "Muscle/Tendon Change Classic") is a Qigong manual containing a series of exercises, coordinated with specific breathing and mental concentration, said to enhance physical health dramatically when practiced consistently. In Chinese yi means change, jin means "tendons and sinews", while jing means "methods". This is a relatively intense form of exercise that aims at strengthening the muscles and tendons, so promoting strength and flexibility, speed and stamina, balance and coordination of the body.  In the modern day there are many translations and distinct sets of exercises all said to be derived from the original (the provenance of which is the subject of some debate). These exercises are notable for being a key element of the physical conditioning used in Shaolin training.
According to legend, the Yijin Jing was said to be left behind by Bodhidharma after his departure from the Shaolin Monastery, and discovered within his grave (or hidden in the walls of the temple) years after he had left (or died). It was accompanied by another text, the Xisui Jing, which was passed to a student of Bodhidharma's but has not survived to the modern day.
The monks of Shaolin reportedly practiced the exercises within the text but lost the true purpose of the document; Lin reports the legend that they "selfishly coveted it, practicing the skills therein, falling into heterodox ways, and losing the correct purpose of cultivating the Way. The Shaolin monks have made some fame for themselves through their fighting skill; this is all due to having obtained this manuscript."
Both documents were written in an Indian language which was not well-understood by the monks of the temple; apparently one monk decided that the text must contain more valuable knowledge than simply self-defense, and went on a pilgrimage with a copy of the text to find someone who could translate the deeper meaning of the text. He eventually met an Indian priest named Pramati in the province of Szechwan who, examining the text, explained that the meaning of the text was extraordinarily deep and beyond his ability to translate fully. He nonetheless provided a partial translation. The monk found that within a year of practicing the techniques as Pramati had translated, that his constitution had become "as hard as steel," and he felt that he could be a Buddha. The monk was so pleased that he thereafter followed Pramati wherever he went.
Modern Scholarly Research
The legendary account springs from two prefaces which accompany the Yijin Jing. One of these prefaces purports to be written by the general Li Jing in 628 during the Tang Dynasty, while the other purports to be written by the general Niu Gao, a junior officer of the Song Dynasty General Yue Fei. However, there are several inaccuracies and inconsistencies in these forewords that cast doubt on the authenticity of the Yijin Jing.
It was specifically the foreword by Li Jing to which Tang Hao traced the attribution of Shaolin Kung Fu to Bodhidharma. Li Jing's foreword refers to "the tenth year of the Taihe period of Emperor Xiaoming of Northern Wei." The Taihe reign period did not occur under Emperor Xiaoming but under Emperor Xiaowen and, in its tenth year (487 CE), the Shaolin temple did not yet exist according to the Jiaqing Chongxiu Yitongzhi, which states that the Shaolin temple was built in the twentieth year of the Taihe era (497 CE), though the Jiaqing Chongxiu Yitongzhi was itself compiled much later in 1820. Li Jing's foreword also claims that he received the manual containing the exercise from the "Bushy Bearded Hero" (虬髯客, Qiuran ke), a popular fictional character from a Tang Dynasty story of the same name by Du Guangting (850-933).
Niu Gao's foreword mentions the Qinzhong temple, which wasn't erected until 20 years after the date he claims to be writing. He also claims to be illiterate. Dictation could resolve the question of how an illiterate could write a foreword, but it is almost certain that a general of Niu Gao's stature was not illiterate.
During the 18th century, the scholar Ling Tingkan concluded that the author of the Yijin Jing must have been an "ignorant village master".
The Yijin Jing appears to be the source for two other popular Qigong forms which are also attributed to various authors. Both the Eighteen Luohan Hands (also associated with Shaolin) and the Eight Pieces of Brocade (Baduanjin) forms seem like abridged versions of Yijinjing sets. The Baduanjin is sometimes attributed to Yue Fei. Of the many versions of all 3 of the above, some also contain forms from the older Wuqin, or Five Animal Frolics of Hua Tuo.
Other sources around the ’50s claim that Yijin Jing was born from the farmers and the people working hard on the fields, and that these exercises would help them in their daily work and are derived from that country life style. Although this claim can be easily brought to political reasons, this is still another possibility. Classic Chinese authors tend to insist on the ancient lineage of this practice, but there is no evidence of the connections to Shaolin systems or to a specific routine.
Yijin Jing – The Forms
Number of exercises tends to change, 18 should be the correct one (according to the 18 Arhats), but can vary from 10 to 24, to 30. Today the most respected routine is that of Wang Zuyuan, composed of 12 exercises, and has been adopted by the most authoritative Academies of Chinese Medicine in China. Chang Renxia together with Chang Weizhen proposed an alternative 14 series, which can be of interest for the therapeutic effects he promises. Deng Mingdao presents a version of 24 series, but with another name, Xisui Jing. In fact, another point of crossing is the relationship between the Xisui Jing and the Yijin Jing. Some authors tend to use those two names for the same routine; others keep things separated and invoke different results and different effects on the body; other authors have written different books and created different theories, sometimes not just for the quest of the final truth.
Tradition YiJinJing form demonstrated by ShaoLin Monk Shi DeQuan with illustration.
The 12 Posture Moving Exercise kept to this day is something that Wang Zuyuan learned at Shaolin Monastery on Mount Song. It is somewhat different from the original "Picture of stationary exercise" and "Guide to the art of attack" (as Guangdong sources refers). Some specialists (Liu Dong) refer of a later integration of Yijin Jing, Daoyin, Tuna and Xingyi methods. However Wang's 12 Postures found to be concise through practice and helps to enhance one's physical health. As the name implies, "sinew transforming exercise" is the method to train the tendons and muscles. The exercise is designed according to the course and the characteristics of Qi circulation in the 12 regular channels and Du and Ren channels. During practice, Qi and blood usually circulates appropriately with proper speed and no sluggishness or stagnation. Because of this efficacy, Yijin Jing has existed for centuries as a favorite with the populace and is still widely used in sanatoria and hospitals for therapeutic purposes. Two ancient written and illustrated routines remained, one from Chen Yi's "A collection of Annals" published during the Ming Dynasty and another more recent published in 1882, from "Internal Work Illustrated", that of Wang Zuyuan.
The 12 Posture Moving Exercise most closely describes what is called the 12 fists of Bodhidharma in Many southern martial arts most notably Hung Gar and Wing chun. Ascribing the 12 exercises to 12 animals that Bodhidharma studied after his 9 years of meditation. The exercises were developed based on the movements of the 12 animals. These exercises healed the sickly monks of Shaolin Monastery, and contribute to the many animal based martial arts in China.
Purposes of Yijin Jing
The basic purpose of Yijin Jing is to turn flaccid and frail sinews and tendons into strong and sturdy ones. The movements of Yijin Jing are at once vigorous and gentle. Their performance calls for a unity of will and strength, i.e. using one's will to direct the exertion of muscular strength. It is coordinated with breathing. Better muscles and tendons means better health and shape, more resistance, flexibility, and endurance. It is obtained as follows:
- postures influence the static and nervous structure of the body
- stretching muscles and sinews affects organs, joints, meridians and Qi
- torsion affects metabolism and Jing production
- breathing produces more and better refined Qi
- active working gives back balance and strength to body and mind (brain, nervous system and spirit).
Power and endurance are of paramount importance if we look at becoming qualified in whatever practice we choose, be it Tuina, martial arts, or simply better health and wisdom. Already another known Qigong system, Baduanjin, in its more radical and strong forms was used in the past from schools of Xingyiquan and Tijiquan as bodily preparation to fighting arts, in order to make body strong and flexible. Baduanjin still remains the first, entry-level routine to learn at Shaolin training schools in Song Mountains. We can still see today Japanese Kata like Sanchin, postures and forms like Siunimtao in Wingchung, "Iron thread" in Hung Gar and all sorts of Neigong in Neijia. Martial artists need to be powerful in the martial practice, like non-martial people need to be healthy. But there is also something supple and flexible inside of Yijin Jing. Movements are energetic and intense, but you can see through a kind of peace. Yijin Jing unifies in fact Yi (intention) with Li (strength), consciousness (yang) with muscular force (yin). The mind is free from thoughts, has a correct and well-disposed attitude, the breathing is harmonious. Internal and external movement must be coordinated, like movement with relaxation. Externally must be fortification; inside must be purification; unifying matter and spirit.
Some classic recurring points of Yijin Jing can be described as follows:
- Most of the movements use open palms, fists are used only for stretching the tendons.
- The names of exercises change, but often the basic idea of movement remains the same. I.e. Wei Tuo greets and offers something (Nanjing Ac. of Tuina); Wei Tuo offers gifts to the sky (Liu Dong); General Skanda holds the Cudgel (Zong Wu-Li Mao).
- Movements are done standing, sometimes bending forward, but never lying or sitting.
- Eyes are always open, never closed.
- Movements are slow but full and tensed, face and body shows relaxed attitude.
- All directions of the upper body section (especially shoulders) are active and moved.
- Dynamic tension rules the moves.
- All parts of the body work together.
- There are different ways of practicing the same Yijinjing form, according to the basic rules, to the body shape, to the time of practice and to the general health conditions.
According to traditional verbal formulas, we have that:
- The first year of training gives back physical and mental vitality.
- The second year enhances blood circulation and nurtures meridians.
- The third year allows flexibility to muscles and nurtures the organs.
- The fourth year improves meridians and nurtures viscera.
- The fifth year washes the marrow and nurtures the brain.
The Five rules of Yijin Jing are:
- Like lake water reflects the moon, a calm spirit allows energy to move inside the body.
- In order to use and flex muscles deeply, to get maximum extension and move Qi and Xue, slow movements are required.
- Each movement must be brought to the maximum.
- Efficacy comes through waiting and keeping tension for a longer time.
- Limbs and trunk must be extended so that blood and energy can circulate, so we have flexibility.
Breathing in Yijin Jing is a controversial point. Modern sources insist on a deep, forced, reverse breathing in order to develop power. Other sources, and among them Robert W. Smith, in his article on the J.A.M.A. in 1996, suggest that there are differences between the northern and the southern way of breath.
The Yijin Jing is featured in Louis Cha's Wuxia novel The Smiling, Proud Wanderer. In the story, abbot Fangzheng of the Shaolin Sect teaches Linghu Chong (the protagonist) how to use the skills described in the Yijin Jing to heal his internal injuries.
- Yijinjing-China kung fu school
- Lin, Boyuan (1996). Zhōngguó wǔshù shǐ 中國武術史 (in Chinese). Taipei 臺北: Wǔzhōu chūbǎnshè 五洲出版社. p. 183.
- Lin 1996:182–183
- Jiaqing chongxiu yitongzhi 嘉慶重修一統志. The Ricci Institute Library Online Catalog.
- Shahar, The Shaolin Monastery, pp. 167-168
- For a brief synopsis of this character's tale, see Liu, James J.Y. The Chinese Knight Errant. London: Routledge and Kegan Paul, 1967 (ISBN 0-226-48688-5), pp. 87-88
- Matsuda Ryuchi 松田隆智 (1986). Zhōngguó wǔshù shǐlüè 中國武術史略 (in Chinese). Taipei 臺北: Danqing tushu.
- Lin 1996:183
- Such as Cheng Zongyou's Explanation of the Original Shaolin Staff Method or Zhang Kongzhao's Boxing Classic: Essential Boxing Methods.
- Matsuda 1986
- Yi Jin Jing Qigong: Muscle and Tendon Changing Qigong. Bibliography, Links, Names of Movements, Quotations, Instructions. Michael P. Garofalo. July 13, 2009. Accessed 2009-11-25
- Hu, William (1965). "The I-Chin Ching, Fact or Fancy?". Black Belt Magazine (Black Belt Inc.) (November 1965, Vol. III, No. 11): 28–30.
- Hu, William (1965). "Research Refutes Indian Origin of I-Chin Ching". Black Belt Magazine (Black Belt Inc.) (December 1965, Vol. III, No. 12): 48–50.
- Shahar, Meir (2008). The Shaolin monastery: history, religion, and the Chinese martial arts. University of Hawaii Press. pp. 12–19. ISBN 978-0-8248-3110-3. Retrieved 2010-05-09.