Is the Book of Changes Feng Shui Secret true? Is it useful?

The Book of Changes is indeed a wonderful book, but it is not specially used to see Feng Shui. It is deceptive to engage in feng shui reading under the banner of the Book of Changes. There are no more than ten people in the world who can understand the Book of Changes, because its knowledge is all-encompassing, so those who change it into Feng Shui theory can think about what it can be.