SIDE BY SIDE
Compare mantic systems
Read systems against shared questions to identify common language, procedural differences and distinct limits.
| Dimension | 纳甲六爻 ↗ | 卦气、纳甲与八宫 ↗ |
|---|---|---|
| Family | Yijing-derived and correlative systems | Divination and correlative foundations |
| Inputs | Casting method, line values, month/day and rule edition | Hexagram sequence, seasonal mapping and stem-branch assignments |
| Procedural structure | After casting primary, moving and changed hexagrams, branches, six relations and host-response positions are assigned through Eight-Palace Najia. A focal relation is selected for the question and evaluated through month, day, combination, clash, production, control, void and change. | Najia inserts temporal signs into hexagram lines; the Eight Palaces arrange the sixty-four hexagrams through transformations and assign host-response positions; hexagram qi maps sequences onto annual and seasonal time. |
| Formation | Han roots; gradual formation after the Tang-Song; mature frameworks in Ming-Qing | Key formation in the Han with continued later development |
| Evidence labels | Textually documented · Traditional attribution | Textually documented · Contested lineage or date |
| Texts | Huozhulin / Huangjin Ce / Zengshan Buyi / Bushi Zhengzong | Jing Lineage Commentary on the Changes / Han-Wei Yijing commentaries and apocrypha / Huozhulin divination manuals |
| Limits | The name Wenwangke does not demonstrate invention by King Wen. Schools differ over void periods, advancing-retreating signs, hidden lines and timing. | The full later algorithm should not be attributed point by point to the historical Jing Fang, and Najia does not mean exactly the same thing in every source. |
| Research question | Which input change alters a chart's interpretation? | What role does the same hexagram play in different tables? |