The essence of yoga, as defined in the Bhagavad Gita and the Yoga Sutras, refers to the "integration" of all aspects of an individual's life. Yoga is both a "state" and a "process." The practice of yoga is the process that leads us to a state of physical and mental balance, which is a state of "integration." In this sense, the balance of yin and yang pursued in traditional Chinese medicine and Tai Chi also represents a yoga state.

Yoga can help people eliminate various obstacles on the physical, mental, and spiritual levels, ultimately leading to a sense of pure joy that transcends the senses. Many who have practiced traditional yoga for a long time have likely experienced that inner state of peace and contentment. This state of joy feels more serene, tranquil, and lasting compared to the excitement and happiness brought by entertainment and stimulation. I believe that those who practice Tai Chi or meditation for a long time have also experienced a similar sense of pure joy.

In the Charaka Samhita, there is a saying that means: a certain type of body corresponds to a certain type of thinking, and similarly, a certain type of thinking corresponds to a certain type of body. The Hatha Yoga Pradipika also mentions that the operations of the mind can influence bodily functions. This reminds me of a similar saying: "The body you have before the age of 30 is given by your parents, and the body you have after the age of 30 is given by yourself."

When we observe someone's outward appearance, we can often quickly judge their personality and temperament. A person's expressions, movements, language, and aura can reveal much about their inner state. Traditional Chinese medicine shares a similar view; a person's emotions and desires often affect their internal physical condition, and over time, this can cause the internal system to operate in a fixed state. Chinese medicine practitioners can usually assess a person's internal condition through external observation, listening, questioning, and pulse diagnosis.Yoga and traditional Chinese medicine are both forms of Eastern wisdom. They use different explanatory systems to describe the same concepts and both offer methods for achieving inner balance and harmony. We can choose the method that best suits our condition and preferences. Although the paths may differ, they ultimately lead to the same goal.