Eight Palaces Foundations: Keep the Source Layers Separate
Last updated 10/7/2026
The Eight Palaces course uses several related systems, but it does not treat them as one undifferentiated cosmology. This lesson’s task is to keep five source layers separate so that a visible line pattern does not quietly become a historical, psychological, medical, or predictive claim.
Prerequisite: identify the upper and lower trigrams of a hexagram. Your output is a five-column layer map that labels what can be observed, what a received text supplies, what belongs to palace classification, what comes from a later lineage rule, and what UAYA added for teaching.
Start with the Visible Hexagram
A hexagram has six lines, numbered from the bottom upward. Lines 1–3 form the lower trigram; lines 4–6 form the upper trigram. When those two trigrams are identical, the hexagram is one of the eight palace heads used in this classification.
| Palace head | Doubled trigram | Hexagram | Palace element |
|---|---|---|---|
| Qian | Heaven ☰ over Heaven ☰ | 1 | Metal |
| Kan | Water ☵ over Water ☵ | 29 | Water |
| Gen | Mountain ☶ over Mountain ☶ | 52 | Earth |
| Zhen | Thunder ☳ over Thunder ☳ | 51 | Wood |
| Xun | Wind ☴ over Wind ☴ | 57 | Wood |
| Li | Fire ☲ over Fire ☲ | 30 | Fire |
| Kun | Earth ☷ over Earth ☷ | 2 | Earth |
| Dui | Lake ☱ over Lake ☱ | 58 | Metal |
The doubled trigram is visible in the line structure. The palace element is a field in the received classification used here; it is not something a reader can derive from the six lines alone.
Claim source: the received Jing Shi Yi Zhuan states the palace elements at the eight head entries: juan shang scan images 6, 19, 30, and 43, followed by juan zhong images 56, 69, 81, and 94. The eight-row map above makes the palace-head and element record directly checkable. This supports the received classification, not a claim about physical causation or an inevitable meaning for the family.
The Five-Layer Map
UAYA uses the following map as a teaching device. Its purpose is source control: each claim should stay in the layer that supplies it.
| Layer | What belongs here | Example | What not to infer |
|---|---|---|---|
| Visible hexagram structure | yin/yang lines, line numbers, lower and upper trigrams | Hexagram 1 has six solid lines and doubled Qian | a personality, diagnosis, or forecast |
| Trigram source imagery | images and associations stated in a named received text | Shuo Gua associates Qian with strength and the father designation | a fixed Qian-palace life script |
| Palace classification | palace head, family membership, element, structural position | Hexagram 35 is the Wandering Soul member of Qian Palace | that a situation is unstable or must progress to Hexagram 14 |
| Later lineage rule | an attributed operation added by a later technical method | Na Jia attaches stem-branch data; Six Relationships compares line and palace elements | that palace membership alone completes a WWG judgment |
| UAYA teaching synthesis | course order, worksheets, comparison prompts, and error checks | classify each statement by source layer before interpreting | that the exercise itself is part of a received text |
The distinction is practical. If you cannot say which column supplies a claim, stop and source, narrow, route, or remove it.
Trigram Material Is Not Palace Psychology
The received Shuo Gua supplies multiple trigram image sets. It pairs trigrams in chapters 3 and 6, gives basic attributes in chapter 7, directions in chapter 5, body images in chapter 9, family designations in chapter 10, and extended image lists in chapter 11.
Those are textual associations. This course may cite a specific passage to orient a trigram, but it does not convert the list into fixed psychology or physical causation. For example:
- “Shuo Gua places Kan with the north in its directional sequence” is a source-bounded trigram claim.
- “The Kan Palace predicts depression, isolation, or illness” is not supplied by that passage and is excluded.
- “Shuo Gua uses an ear as a Kan body image” describes textual imagery; it is not a diagnosis or a claim that Kan causes an ear condition.
Claim source: received Shuo Gua, permanent revision 2614055: chapter 5 for the directional sequence, chapter 7 for the basic attributes, chapter 9 for body images, and chapter 10 for family designations. These are paraphrases of source placement, not medical or psychological applications.
Palace Elements Are Coordinates, Not Outcomes
In the received classification used by this course:
- Qian and Dui carry Metal;
- Zhen and Xun carry Wood;
- Kun and Gen carry Earth;
- Kan carries Water;
- Li carries Fire.
This record allows the family lessons to make controlled comparisons. It does not mean that a Metal palace guarantees authority, that a Wood palace guarantees growth, or that Water and Fire describe a person’s condition.
The generation and control relations of Wu Xing become relevant in later technical work, but this page does not teach the entire Five Phase system. Use the dedicated Wu Xing reference when you need that grammar.
Route Each System to Its Owner
| Topic | What this lesson needs | Where the full job belongs |
|---|---|---|
| Trigrams | identify upper, lower, and doubled forms | Trigram reference |
| Palace families | identify the head, element, members, and position | Palace browser and the construction lesson |
| Wu Xing | recognize the five palace-element labels | Wu Xing reference |
| Na Jia and Six Relationships | recognize these as additional later operations | Na Jia and Six Relationships bridge |
| Full Liu Yao judgment | know that palace data is only one coordinate | Wen Wang Gua course |
| Gua Qi, nuclear hexagrams, timing, and directional use | nothing is required for sequence construction | outside this core lesson unless separately sourced |
Routing is a stopping condition. Do not import an operation merely because it shares a trigram, element, branch, or hexagram name with the palace record.
Classification Exercise
Copy the five layer labels into your notes. Then classify each statement before reading the answer key.
- Hexagram 29 has Kan as both its upper and lower trigram.
- Shuo Gua includes Water and Fire in a paired statement.
- Hexagram 36 occupies the Wandering Soul position of Kan Palace.
- A later Na Jia procedure attaches branch-element data to the six lines.
- The five-layer worksheet should be completed before sequence interpretation.
Answer key:
| Statement | Layer | Reason |
|---|---|---|
| 1 | Visible hexagram structure | the doubled trigram can be checked from the six lines |
| 2 | Trigram source imagery | the claim is attributed to Shuo Gua, chapter 6 |
| 3 | Palace classification | family and position come from the verified palace record |
| 4 | Later lineage rule | Na Jia is an additional technical operation, not visible in the bare lines |
| 5 | UAYA teaching synthesis | the worksheet order is a course design decision |
If a statement spans two layers, split it. “Hexagram 36 is in Kan Palace, therefore the reader is in danger” mixes a checkable classification with an unsupported conclusion. Keep the first clause and remove the second.
Your layer map is complete when every retained claim has an owner. Next, use the visible line structure to construct a full family. Continue to the Architecture of Transformation.