Xu Ziping, the author of this book, is a legendary figure who initiated a generation of numerology, and Yuan Hai Zi Ping is also a classic book named after him. In view of Xu Ziping's great contribution to four-pillar numerology, later generations respectfully called him "Master of Numerology" and called four-pillar numerology "Zi Ping Fa".
As a product of feudal society, there must be some dross in "Purple Ping in the Far Sea", such as the concept of official standard, the concept of valuing officials and people, the concept of men being superior to women, the concept of having many children and grandchildren, etc ... We should explore and discard them rationally with a critical attitude.