Why did Confucius read Zhouyi in his later years?

As the founder of Confucianism, why did Confucius begin to study and revise the Book of Changes in his later years? At the age of knowing destiny, Confucius had more experience in society and life and more mature thoughts, so he could deeply understand the philosophy contained in the Book of Changes. He raised the Book of Changes, which was originally limited to divination with divination, to a new interpretation realm, understood the connotation of the Book of Changes with Confucianism, compared the social behavior of life with divination, and wrote immortal famous sentences such as "Heaven is healthy and gentlemen are constantly striving for self-improvement", which have been passed down through the ages.

The Book of Changes is an excellent cultural heritage created by our Chinese nation. Confucius, our most sacred teacher, set an example for us to learn the Book of Changes. His academic spirit and lofty ideological realm are examples for our future generations to learn forever!