Heaven usually refers to the laws and regulations of nature, which includes the order, laws and principles of nature and covers all phenomena and things in the universe. Heaven transcends human wisdom and is the result of the natural operation of the universe. In the Book of Changes, the sky is usually represented by the image of "dry".
Tunnel usually refers to the operating rules and laws of nature, which includes all the attributes and characteristics of nature, such as mountains, rivers, vegetation and so on. In the Book of Changes, the tunnel is usually represented by the image of Kun.
Humanism refers to the moral standards and codes of conduct of human society, including all customs, moral concepts and legal norms of human society. In the Book of Changes, human nature is usually represented by the other four hexagrams.
In the Book of Changes, "heaven, earth and man" are interrelated and influenced each other, and their relationship is the basis of the natural operation of the universe. At the same time, the Book of Changes also emphasizes the interaction and influence among heaven, earth and human beings, as well as their importance and role in the universe. By studying and understanding the "Three Ways of Heaven, Earth and Man", people can better understand the laws and regulations of the operation of the universe, nature and society, so as to better cope with various challenges and changes in life.