Learning aid: What does "never leave" mean?

In ancient times, divination with tortoise shell was called divination with yarrow, and divination was called divination.

Fuxi painted gossip and wrote Yi according to gossip, which is what we now call the Book of Changes, which means Yi is the experience of writing gossip. Besides the cultural level of Yi, there are three aspects of Yi: image, reason and number. Now all our divination is inseparable from these three aspects, such as a glass cup, its shape is its image, its principle is that it can hold water, and its number is how much water it can hold. In addition, Yi-ology thinking is very different from western classical logical thinking. Yi-ology thinking is "image thinking". According to some elements, connect with reality, and then choose the correct answer by using the principle of heaven-man induction (one of the main principles of Yi-ology).

On divination with the Book of Changes, not to mention the profound "three types". Now six hexagrams and plum blossoms are used more. Theoretically, they can be used to measure everything, but each prediction method has its own details, such as six details. Plum blossoms are easy to predict and good at breaking numbers. But no matter which method, there are problems of accuracy. For example, the popular "shooting" game in ancient times, suppose we are going to shoot the name of the movie "Crazy Stone" now. What we broke may be related to the "soil" of the five elements, but we can't accurately break the full name.

As the first of the Five Classics, The Book of Changes is only a small part of divination, and there are many things worth studying in philosophy, natural science and culture. It is not easy to really study the Book of Changes thoroughly.