START HERE · 6 MIN READ

What Is Chinese Metaphysics?

A practical map of the traditions grouped under Chinese metaphysics, and how to study them without flattening their differences.

“Chinese metaphysics” is a modern English umbrella phrase. The Chinese term Xuanxue (玄学, xuánxué) has a narrower historical use, though modern Chinese usage can also be broad. The traditions grouped under the English phrase include systems that use yin and yang (阴阳, yīnyáng), the Five Elements (五行, wǔxíng), qi (气, qì), calendars, and symbolic diagrams; they do not form one ancient school with a single founder or method.

A useful first map has four layers:

1. Ideas: yin-yang, qi, and the Five Elements provide vocabularies for describing relations and change.
2. Time and place: calendars, solar terms (二十四节气, èrshísì jiéqì), directions, and the sexagenary cycle (干支, gānzhī) mark time and space.
3. Symbols: the eight trigrams (八卦, bāguà), hexagrams (六十四卦, liùshísì guà), chart signs, and other ordered symbols make a method readable.
4. Practices: divination, BaZi (八字, bāzì), feng shui (风水, fēngshuǐ), date selection, and physiognomy (相术, xiàngshù) apply different rules to different questions.

The map is a teaching aid, not a claim that every practice began from one system or developed in a straight line. A BaZi chart, an I Ching consultation, and a feng shui site reading do not use the same inputs or answer the same question.

Start with the language#

In early medieval Chinese intellectual history, Xuanxue (玄学, xuánxué) refers to a specific movement of philosophical interpretation associated with the Daodejing (《道德经》, Dàodéjīng), Zhuangzi (《庄子》, Zhuāngzǐ), and Yijing (《易经》, Yìjīng). Modern conversation sometimes uses “Chinese metaphysics” more broadly for divination, fate calculation, feng shui, and related traditions. The two usages overlap in modern writing but are not identical. See What Does Xuanxue Mean?.

Classical catalogues also used categories such as shushu (數術, shùshù, numerical arts) and fangji (方技, fāngjì, technical arts). The Yiwenzhi (《汉书·艺文志》, Yìwénzhì) chapter of the Book of Han sorts works under historical headings; it does not present today's “Chinese metaphysics” as one unified discipline. Read the Chinese text of the Yiwenzhi alongside modern scholarship rather than mapping present-day labels directly onto antiquity.

Two questions for every method#

First, learn the method on its own terms: what does it take as input, what steps does it follow, and what does a practitioner consider a valid interpretation? Then ask historical and evidential questions: when did the method take shape, which sources record it, and how could a predictive claim be tested?

These questions are related but different. A calculation can be performed correctly according to a stated convention without proving that the interpretation predicts future events. A ritual or reading may have cultural or reflective value without that value serving as evidence of prediction.

A practical route through the subject#

Begin with yin-yang and the Five Elements, then learn how stems, branches, and solar terms encode time. After that, study the Yijing and the methods that use its symbols. BaZi and feng shui make more sense when their calendars and vocabulary are familiar. Finally, compare historical sources and modern ways of evaluating claims.

For the course map, see all 14 modules. For terms, use the bilingual glossary.

Further reading#

• Xuanxue and Wuxing (Chinese philosophy) on English Wikipedia.
• The Book of Han Yiwenzhi at the Chinese Text Project.
• Richard J. Smith, Fathoming the Cosmos and Ordering the World: The Yijing and Its Evolution in China.