So why should Lu Ban, who is so proficient in civil engineering, learn the Book of Changes? Nowadays, most of the tools used by craftsmen were invented by Lu Ban, who is also known as the ancestor of craftsmen. These are all the experiences he gained in life practice and summed up in practice.
I think it has something to do with his personal experience and extensive knowledge. There are many things he needs in the Book of Changes, such as philosophy of life and practical skills. Invention comes from life and finally lives. The Book of Changes also plays a certain role in civil design. No one will be idle and bored to study something unimportant, unless of course he is a wealthy family with good living conditions.
The Book of Changes contains very rich philosophy of life and practical skills. Lu Ban's mastery of civil engineering also depends on extensive knowledge and experience. Without rich experience and profound knowledge, he is not proficient in a skill. They need more knowledge to enrich and support his theory. His theoretical source must also be extensive and rich knowledge and experience.
A lot of knowledge mentioned in the Book of Changes plays a very important role in Luban's civil engineering, and there are also many truths about life. It is never too old to learn, and reading more books is not a bad thing for him. Speaking of never too old to learn, this should be a traditional virtue handed down from ancient times. I think a talented person like Lu Ban should read a lot of poetry books.
As a person who loves learning, it is not surprising that Lu Ban read more books at that time, because rich knowledge is also a great guarantee for his life, a rich theoretical foundation and a rare wealth.