In traditional health preserving and traditional medicine, music and nature are in harmony with human body, which is the harmony between music and people. The reason why music can cure diseases is that it coordinates the yin and yang aspects of the human body and unifies with the natural changes of yin and yang in the universe. The information released by the beautiful melody can be transformed into material strength to achieve the effect of harmonizing the human body. Music can regulate the functional state of viscera, that is, music and viscera are in harmony. Music is a kind of comprehensive information. Musical instruments with different sounds, rhythms, speeds, dynamics and different frequency spectrums are transmitted to the body with the vibration of the sound, so that the functions of zang-fu organs tend to be naturally coordinated.
Music has the function of keeping healthy. Xunzi said in his theory of music: Therefore, the music is clear, the ceremony is done, the eyes and ears are smart, the blood is peaceful, the customs are changed, the world is peaceful, and the beauty and goodness are happy. Traditional music pays attention to the artistic conception of being clear, quiet, distant, which is exactly the same as the law of conforming to nature and being indifferent and nothingness advocated by traditional medicine. This kind of thought is not far away from the world, but a measure to bring people's temperament to peace and tranquility through Xerox, which can be adjusted by various methods such as temperance, catharsis, empathy and emotion control.