Chapter 28: Flying and Hidden Lines

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Overall Paraphrase
When the corresponding line (representing the matter inquired about) cannot be found in the hexagram, first check if the celestial stems or earthly branches of the day or month can serve as the corresponding line. If they cannot, refer to the hexagram of the original palace (the eight pure hexagrams), as these hexagrams contain all six relative lines.

For example, in the hexagram Heavenly Wind Gou (belonging to the Qian Palace):

If inquiring about wealth or a wife, the Wealth Line is used as the corresponding line. The Gou hexagram lacks the Wood lines (Yin or Mao, representing Wealth). If the divination is performed during the Yin or Mao month, the month’s branch can directly serve as the corresponding line. Otherwise, refer to the Qian Palace’s pure hexagram, Heaven as Qian, where the second line (Yin Wood Wealth) can be hidden beneath the second line of the Gou hexagram (Hai Water):
- 🌊 Hai Water is the Flying Line, 🌱 Yin Wood is the Hidden Line.
- Hai Water generates Yin Wood, known as "the Flying Line generates the Hidden Line, granting longevity." This is an auspicious sign, indicating that although the Hidden Line is concealed, it receives support and should be interpreted favorably.

Conversely, in the hexagram Heavenly Mountain Dun (also belonging to the Qian Palace):

If inquiring about offspring, the Water line is used as the corresponding line. The Dun hexagram lacks Hai or Zi Water. If the divination is not performed during the Hai or Zi month or day, refer to the first line of Heaven as Qian (Zi Water Offspring), which can be hidden beneath the first line of the Dun hexagram (Chen Earth):
- ⛰ Chen Earth is the Flying Line, 🌊 Zi Water is the Hidden Line.
- Chen Earth restrains Zi Water, known as "the Flying Line restrains the Hidden Line, causing harm." This indicates the Hidden Line is suppressed, an inauspicious sign.

However, note: The strength of the Hidden Line must be assessed comprehensively. Even if the Flying Line restrains the Hidden Line, if the day or month supports the Hidden Line, the outcome can still be auspicious (as explained in the new commentary).

🧠 In-Depth Understanding

Core Concepts 💡

The Flying and Hidden relationship is key to the hexagram’s deeper structure. The Hidden Line lies beneath the Flying Line, and their generative or restraining relationship determines the trend of auspiciousness or inauspiciousness.
If the corresponding line is absent, seek the Hidden Line. Do not ignore the Hidden Line simply because the day or month serves as the corresponding line (e.g., in the marriage hexagram example, the Hidden Line Zi Water reveals the wife being taken away, with the event occurring in the Zi year).
Conditions for the Hidden Line to emerge: Receiving support, the Flying Line being weak or empty, or encountering clashes or specific time periods can all trigger the Hidden Line to manifest its influence.

Modern Interpretation 🌟

The Flying and Hidden mechanism is analogous to the relationship between "explicit information" and "implicit background":
- The Flying Line represents surface phenomena (e.g., conflicts in a marriage), while the Hidden Line represents underlying causes (e.g., emotional core issues or third-party interference).
Timing of events: The earthly branch of the Hidden Line often indicates the year or month when the event will occur (e.g., a Hidden Zi Water line suggests the event will happen in a Zi year).
Decision-making reference:
- If the Hidden Line receives support (e.g., the Flying Line generates it, or the day/month supports it), it hints at hidden opportunities or turning points.
- If the Hidden Line is restrained (e.g., the Flying Line restrains it, or the day/month restrains it), potential risks or obstacles must be警惕ed.

Practical Value ⚡

Workplace and relationships:
- The example of "Wealth Line hidden" corresponds to a partner being taken away, which can be analogous to business allies being sought by competitors, highlighting the need to strengthen relationships proactively.
Health predictions:
- If the corresponding line is strong but meets a combination (e.g., a six-harmony hexagram), it suggests the illness may recur (e.g., a stomach bleeding patient ultimately dying of liver disease).
Multi-hexagram verification:
- If a single hexagram is ambiguous, additional divinations can provide confirmation (e.g., three consecutive divinations for a father’s illness), avoiding the one-sidedness of a single interpretation.

Philosophical Reflection 🤔

Interplay of hidden and visible: The Flying and Hidden structure reflects the dialectical unity of "visible and invisible," reminding us to consider both surface and underlying factors in real-world issues.
Dynamic balance: The emergence of the Hidden Line requires timing (clashes, emptiness, or support), echoing the wisdom of "not forcing outcomes when conditions are immature, as success will come naturally when the time is ripe."

📚 Related Knowledge

Key Concepts

Pure hexagram of the original palace: The eight pure hexagrams (e.g., Heaven as Qian, Earth as Kun) contain all six relative lines and are the source for seeking Hidden Lines.
Flying and Hidden Lines:
- Flying Line: The visible line in the hexagram.
- Hidden Line: The line borrowed from the pure hexagram and hidden beneath the Flying Line.
Conditions for triggering the Hidden Line: If the Flying Line is empty, broken, or weak, or if the day, month, or moving lines clash with or restrain the Flying Line, the Hidden Line is more likely to emerge.

Modern Research

Application of the Flying and Hidden mechanism in psychological divination: The Hidden Line can reflect subconscious motives, while the Flying Line represents conscious behavior (e.g., "Sibling Line moving to combine with Wealth Line"暗示s a competitive mindset).
Data-driven decision models: Transforming the generative or restraining relationships of Flying and Hidden Lines into risk weights (e.g., a restrained Hidden Line increases risk value by 30%) to assist quantitative analysis.

🧩 Structured Components (Case Embedding)

Example 1: Marriage Inquiry (Qian造)

Embedded chart

Marriage Inquiry Example

Male chart

Pillars	Year	Month	Day	Hour
Ten Gods	正财	比肩	Self (M)	七杀
Stem	庚	丁	丁	癸
Branch	子	未	未	亥
Hidden Stems	癸杀	己食丁比乙枭	己食丁比乙枭	壬官甲印
Stage	绝	冠带	冠带	胎

Luck cycles

戊申己酉庚戌辛亥壬子癸丑甲寅乙卯

Example 2: Father’s Illness Inquiry (Qian造)

Embedded chart

Father’s Illness Example

Male chart

Pillars	Year	Month	Day	Hour
Ten Gods	正财	比肩	Self (M)	七杀
Stem	庚	丁	丁	癸
Branch	子	未	未	亥
Hidden Stems	癸杀	己食丁比乙枭	己食丁比乙枭	壬官甲印
Stage	绝	冠带	冠带	胎

Luck cycles

戊申己酉庚戌辛亥壬子癸丑甲寅乙卯

Example 3: Escaped Servant Inquiry

Embedded chart

Escaped Servant Example

Male chart

Stem-branch set	Set 1	Set 2	Set 3
Stem	戊	丙	丁
Branch	申	辰	巳

Example 4: Colleague’s Illness Inquiry (Kun造)

Embedded chart

Colleague’s Illness Example

Female chart

Stem-branch set	Set 1	Set 2	Set 3
Stem	丁	己	丁
Branch	丑	酉	丑

⚠️ Key Reminders (Integrating New Commentary Insights)

Day and month are not omnipotent: Even if the day or month serves as the corresponding line, the Hidden Line must still be checked (e.g., the Hidden Zi Water in the marriage hexagram reveals the timing of the wife being taken away).
Empty Flying Line facilitates Hidden Line emergence: When the Flying Line is empty, broken, or weak, the Hidden Line is more likely to exert its influence (e.g., an empty Flying Line in the wife’s departure hexagram反而 indicates auspiciousness).
Multi-hexagram verification surpasses single interpretation: For ambiguous cases, perform multiple divinations (e.g., three consecutive divinations for a father’s illness) to ensure comprehensive and accurate judgment.
Hidden Line timing takes priority: The earthly branch of the Hidden Line often indicates the year or month of the event (e.g., a Hidden Zi Water line suggests the event will occur in a Zi year).