Judging from the two hexagrams of Gankun in the Book of Changes, the Book of Changes is the brightest pearl in the treasure house of China classical literature.
When we talk about the Book of Changes, we will associate it with gossip, and when we think of gossip, we will associate it with the omnipotent master of astronomy and geography. The Book of Changes is actually the general program of China's traditional culture, which contains simple natural laws and profound and harmonious dialectical unity thought, and is called "the source of various classics".
Just as celestial bodies maintain vitality through movement, a gentleman should constantly pursue self-improvement. The capacity of the earth is limited, so a gentleman must constantly cultivate his own virtue to undertake the world. The former sentence is used to explain the image of Gangua, and the latter sentence is used to explain the image of Kungua. These two sentences summarize the core ideas contained in the whole Book of Changes. The previous sentence emphasizes that a gentleman should obey the "destiny" and take the spirit of "self-improvement" as the driving force.
The ancients believed that there was a "destiny", and the destiny was unchanged, but where is this destiny reflected? Where is it often? Confucius explained this problem by explaining the image of divination in dry branches. We observe the movement of the sky, and the sun, the moon and the stars are powerful and never stop; A gentleman should follow the example of heaven and strive for self-improvement.
The latter sentence lets us observe the overall situation of the earth, showing the trend of "Kun", that is, deep, wide and infinite. A gentleman should take the tunnel as an example, constantly cultivate his virtue with the spirit of self-improvement, make his virtue as deep as the earth, let everything grow and carry everything.