Yijing Research · Harmen Mesker
Research, translations and lectures on the Zhouyi, Wenwang Gua and the history of Chinese divination.
Research meets practice
Harmen Mesker and Johannes Bloemsma bring classical Chinese sources and practical experience together in courses on the Yijing and Wenwang Gua.
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Research areas
Original texts, their transmission, and the different ways the Book of Changes has been studied and used.
From the archive
Articles, translations and critical examinations of the sources.
Translation Notes · 21 Apr 2014
The main theme of hexagram 4 as seen in the line texts is not the ignorant fellow, but the ignorant fellow who wants or needs his ignorance removed. There is a drive for gaining knowledge,…
Read article →Divination and practice · 9 May 2025
This is for members who are using Meihua Yishu 梅花易數, ‘Plumblossom Numerology’ and follow Da Liu’s book I Ching Numerology. I got an email from a reader, asking about a problem with…
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Translation Notes · 20 Feb 2013
This article contains a lot of tiny images, which makes it difficult to post it as a WordPress article. In these cases a PDF works much better. Download here: The Yijing as…
Read article →Latest writing
New work and observations from the research archive.
Video lectures
Historical divination cases explained through original Chinese sources. Follow the reasoning behind the judgments and the methods used.
Explore the video library →Original source-based cases
The latest four episodes, updated automatically from the YouTube playlist.
Latest public uploads in the Wenwang Gua playlist. Watch the complete series on YouTube ↗
About the researcher
Studying the Yijing since 1982, Harmen works with the history and language of the Zhouyi, early Chinese sources and traditional methods of divination. His research and teaching bring textual study and practical experience together.
Read the full biography and recommendations →Research and teaching
Books, lectures and courses are all part of the continuing study of the Yijing.