Why is it difficult to calculate the life span of a yogi?

Most Buddhists can calculate. Buddhists only cultivate personality, not body, so their physique has not improved and their personality will not change. They just flinched.

Taoism is difficult to calculate. Taoism cultivates temperament and physique. Physical fitness has changed, personality has also changed, personality has changed, learning speed has accelerated, self-improvement speed has been faster, and it is more difficult to guess.

For example, liver disease, stagnation of liver-qi, and excessive anger, which are typical constitutions that determine personality,

Taoism will have diet, acupuncture, massage, guidance, and sports training, which will change greatly the day after tomorrow.

Fortune-telling originated from Taoism and originated from the five movements and six qi in Neijing. The basic principle is that natural climatic conditions and climate in different periods affect embryo development, leading to individual physique and personality characteristics, and also have a certain impact on the fate of the day after tomorrow. The basic operation of Taoism is the unity of man and nature, and everyone is trying their best to adjust the balance of viscera and adapt to the climate change of the universe.