Teacher Yi Yutang's kindness is real. Yi Yu Tang Nianci is a fan of the Book of Changes. He has many years of research experience and rich practical experience in the field of the Book of Changes, and provides guidance for students in the training camp of the live class of the Book of Changes.

It should be noted that although Mr. Yi Yutang Nianci has rich knowledge and experience in the Book of Changes, he also needs to maintain a rational and objective attitude to study and apply the Book of Changes, and should not be too superstitious or exaggerate its role.