The Yi Jing, a traditional Chinese book, is best known for its divinatory use. Its deeper vocation is to present the whole set of 64 energetic situations to which an individual may be exposed, in the form of symbolic figures with six superimposed lines called "hexagrams", combining two types of lines: broken lines (Yin polarity) and unbroken lines (Yang polarity).

Such a concept proceeds from an approach to the human being and their environment within an energetic vision of the universe, as it has been described and applied for millennia in Traditional Chinese Medicine.

The acupuncture techniques detailed in this work draw on the fundamental data explored in Aux sources de la médecine chinoise (Médicis, 2009). The 64 hexagrams have been studied together with their energetic meaning specific to each situation, in resonance with the energetic aspect of subjects' morphotypes.

This enables the acupuncturist to find, for each patient, an individualised and personalised diagnostic and therapeutic orientation, thanks to a calculator and clinical charts. Together, the two works thus offer as complete a panorama as possible of the use of the traditional data of the Yi Jing in everyday medical practice.