Names across languages
先天八卦
Earlier-Heaven Bagua
先天八卦
선천팔괘
Alternate names: 伏羲八卦; Early Heaven arrangement; xiāntiān bāguà
Reviewed definition
Earlier-Heaven Bagua (先天八卦) is a technical term within feng shui and Yijing-related knowledge systems. Specifically, A later trigram arrangement commonly attributed to Fuxi and read through paired oppositions and ideal order. Its naming, diagrammatic form and uses belong to later Yijing traditions and should not be projected uncritically into remote antiquity. This library explains it within the Yijing symbol systems domain and distinguishes historical description, lineage rules, observable spatial data and later symbolic interpretation.
Historical context
The modern meaning of this term accumulated through classical texts, commentaries, regional practice and later systematization. Review used “Book of Changes: Shuo Gua” for historical, textual or material context; that source does not establish that every later lineage uses the term identically.
Modern-use note
Today, Earlier-Heaven Bagua may be used in terminology teaching, source indexing, case annotation, compass or landform documentation and comparison of lineage rules. Professional records should state edition, directional reference, scale, date, observations and uncertainty so another reader can trace the reasoning.
現代では、用語教育、文献索引、事例注記、地形・方位資料の説明に利用できる。版、流派、尺度、測定基準、日付と不確実性を明示し、結論だけでなく根拠を追跡できる形で記録する。
현대에는 용어 교육, 문헌 색인, 사례 주석, 지형·방위 자료 설명에 활용할 수 있다. 판본, 유파, 척도, 측정 기준, 날짜와 불확실성을 밝혀 결론뿐 아니라 근거를 추적할 수 있게 기록한다.
Limitations and cross-cultural caution
This term records a cultural, historical or lineage-specific interpretive framework. It must not be presented as established scientific causation or a guarantee of health, wealth, relationships, examinations or investment outcomes. Building, structural, fire, environmental, medical, legal and financial matters require applicable rules, measurements and qualified advice.
Cross-cultural writing should retain 先天八卦 with a transliteration or conventional translation. Japanese “先天八卦”, Korean “선천팔괘” and English “Earlier-Heaven Bagua” may have different local ranges; similar labels do not make methods, historical authority or practical conclusions identical.
Reviewed sources
Citations show what the review relied on. Contextual coverage supports description or tradition, not scientific causation.
Bilingual primary-text repository used for trigram, line, directional and Three-Powers terminology.