How did ancient fortune tellers know that Jin Mu was in trouble?

The concept of five elements came into being a little later than Yin and Yang. As the basic contents of the five elements, gold, wood, water, fire and earth have long been recognized by people. At first, the five elements specifically referred to the movements of five stars (Mercury, Mars, Venus, Jupiter and Saturn). During the Warring States Period, Zou Yan, a famous yin-yang scholar, established the Five Elements Theory according to the five elements movement of the stars in the sky, so as to explain the more complicated relationship between various things in nature. Combining it with the theory of Yin and Yang, this paper discusses the production and movement law of natural things, thus forming the source of China's traditional philosophy.