Paul Grilley, the Greater China Executive Director of the Patanjali Yoga Institute in India, believes that the theory is mainly designed for westerners who like to practice muscle. Westerners like Ashtanga Yoga or strength Yoga even when they do yoga. Therefore, they need to use the method of tension to achieve balance, yoga has been more emphasis on tension posture, so you will feel that Yin Yoga is familiar with these movements, nothing. If your past postures have emphasized softness, you don't have to practice Yin Yoga because it stretches our muscles and connective tissue excessively. It stretches for a long time, so don't stay at your maximum. For example, don't split your leg at the maximum angle, but be conservative and take some back so that you don't overdo it and get hurt when you stretch for a long time. As Paul Grilley said, only when Yin and yang are in balance can we be in harmony. Let yourself achieve a more joyful level.
That is to say, Paul Grilley, as a Westerner, has found the principle of balance between yin and Yang in China, and has developed a theory by incorporating some viewpoints of human structure. That is to say, he believes that regular practice of muscle strength training posture method, need to relax the movement, stretch our muscles and tendons, so that the body will not pay too much attention to muscles, less soft; only movement, less time to contact their own souls.
Therefore, he designed the movements are not difficult, for example: butterfly style, before splitting the legs. These are not "heavyweight" actions for people who often practise postures. But the difficulty is: each movement stays for about 5 minutes. In other words, every action is done one after another in the condition of stretching and staying.
Paul Grillry believes that to do Yin yoga, in addition to breathing, there is also a principle that the lower half of the body should be extended, upper body has a little muscle exercise. Because he thinks: Most people's leg movement is only walking, running or muscle training, not enough extension, so to pull more. But in order to balance, the upper part needs to practise some muscles.
These are some theoretical foundations in the development of Yin Yoga concept. As can be seen from the above, the claim that Yin Yoga originated in Japan and was founded in 1979 is incorrect.
