As the proverb goes: "Without studying the Five Movements and Six Qi (Wuyun Liuqi, a theory of climatic cycles), what is the use of reading all medical books?" Therefore, those who have a slight understanding of medical principles often regard the deduction of Si Tian (Sovereign Heaven) and Zai Quan (Subordinate Earth) as their primary task. However, they do not realize that chapters such as *Tianyuan Ji* were originally not part of the *Suwen* (Plain Questions). Wang Bing (Wang Taipu) extracted them from the *Yinyang Dalun* (Great Treatise on Yin and Yang) to supplement the classic text. Later generations regarded these as sayings of ancient sages, daring not to question them. In reality, they have little relevance to the true Dao of medicine. Moreover, the text explicitly states that while seasons have fixed positions, the Qi (climatic energy) has no absolute certainty. Such detailed discussions are merely an attempt to exhaustively investigate the underlying principles. Even if the cycles of overcoming and retaliation follow regular patterns, the political influences differ between North and South. The four directions have variations in elevation, and the four seasons experience changes outside their normal timing; within a hundred paces, sunny and rainy conditions may differ; a thousand miles away, cold and warm climates may vary. How can one use a fixed method to predict extraordinary changes? Memorizing these for reference purposes is acceptable, but regarding them as a rigid method for treating diseases leads to dogmatism and inflexibility.