《道法會元》Vol. 78

The 78th volume of Daofa Huiyuan (Comprehensive Collection of Daoist Rituals) records the crucial timing methods for "Thunderclap Mystical Pacts" and "Flaming Fire Great Sha." It particularly highlights eighteen optimal days for ritual practice under the "Golden Tiger Flaming Fire Great Sha" system:

In the first ten-day cycle (Jiazi), the days of Bingyin, Jisi, and Gengwu are most potent;

In the Jiadecade cycle, Wuyin, Xinsi, and Renwu yield the best results;

In the Jiashen cycle, Dinghai and Yiyou are most favorable;

In the Jiawu cycle, Renyin, Dingyou, Yiwei, and Bingshen are superior choices;

In the Jiachen cycle, Dingwei, Wushen, and Jiyou are most effective;

In the Jiayin cycle, Dingsi, Bingchen, and Guihai hold special efficacy.

Among these, days marked by the heavenly stems Bing, Xin, Wu, and Gui are designated as "Vanguard Days" of particular significance.

The text further correlates the Five Phases with natural phenomena: Metal governs thunder, Wood clear skies, Water rainfall, Fire lightning, and Earth thunderstorms. These phenomena must either harmonize or clash to produce desired ritual effects.

Additionally, it details the calculation method for "Suppression-Cutting Days" (Fuduan Ri): when the earthly branch Zi coincides with the Xu constellation, it becomes a Suppression-Cutting Day; Chou with Dou, Yin with Shi, and so forth. Five special stem-branch combinations are listed, each corresponding to the Xu, Kui, Bi, Gui, and Yi constellations—all bearing unique ritual significance in Daoist practice.

(Note: The "ten-day cycles" refer to ancient calendrical divisions based on heavenly stems. "Suppression-Cutting Days" are considered inauspicious for major activities in Daoist tradition, while "constellations" denote specific asterisms among the Twenty-Eight Lunar Mansions.)

This scripture records ancient Daoist methods for weather prediction using celestial knowledge such as the Heavenly Stems and Earthly Branches (Tiangan Dizhi) and the Twenty-Eight Lunar Mansions (Ershiba Xiu). The content comprises three main components:

First, it details the temporal correspondence between the Heavenly Stems/Earthly Branches and solar terms. For instance, thunder in the first lunar month (Yin month) of spring occurs during the Chou hour (1-3 AM), in the second month during the Yin hour (3-5 AM), and in the third month during the Mao hour (5-7 AM), with similar correlations throughout the four seasons. A special note states that if the solar term of the seventh month appears in the sixth month (i.e., an early seasonal shift), one should use the Shen hour (3-5 PM) for calculations instead.

Second, it explains the daily Five Phases (Wuxing) attributes and weather omens associated with each of the Twenty-Eight Lunar Mansions. Every mansion day (e.g., Jiao Xiu day, Kang Xiu day) corresponds to specific elemental combinations (Metal, Wood, Water, Fire, Earth), forecasting different weather conditions: "zhi" indicates the correspondence, while terms like "wind," "rain," "overcast," and "clear" denote predicted outcomes. For example, when Jiao Xiu day aligns with Wood, it signifies wind; with Metal, overcast skies; with Fire, rain; and with Earth or Water, fair weather.

Lastly, it mentions the observational experience of "Fire Masters" (Huoshi): after prolonged rainfall, encountering specific Heavenly Stem/Earthly Branch combinations (known as Fuduan) inevitably brings clear weather, while extended dry spells followed by Fuduan will result in rain. This demonstrates Daoism's integration of astronomical calendrics with empirical meteorological knowledge.

These practices reflect the Daoist cosmological principle of "resonance between Heaven and humanity" (Tianren Ganying), where celestial patterns inform predictions of natural phenomena. Such knowledge served as crucial reference material for ancient Daoist thunder rituals (Leifa, wind-and-rain summoning techniques) and agricultural activities. The terms "Liu Yuan" and "Qi Yuan" likely refer to specific cyclical patterns within the stem-branch system, though the original text does not elaborate on their precise meanings.

This scripture primarily discusses ancient Daoist methods for weather prediction and selecting auspicious or inauspicious timings, involving concepts such as celestial phenomena, heavenly stems and earthly branches (ganzhi), and the twenty-eight lunar mansions (ershiba xiu).

The first section describes weather omens when different lunar mansions preside over the day: For instance, when the Well Mansion (Jingxiu) is in charge and encounters Metal, Water, or Earth stars, rain will occur; when encountering Fire or Wood stars, clear weather follows. The Ghost Mansion (Guixu) brings rain when meeting Metal, Water, or Wood stars, but clear skies with Fire or Earth stars. Later passages note that the Star Mansion (Xingxiu) and Extended Net Mansion (Zhangxiu) mostly indicate fair weather, while the Chariot Mansion (Zhenxiu) shows unpredictable conditions.

The second section concerns thunderstorm direction prediction, calculated according to the six ten-day cycles (from Jiazi to Jiaxu) within the sixty-year ganzhi cycle. For example, during the Jiazi cycle, the Thunder God appears at noon, the Wind Lord at dawn, and the Rain Master at dusk.

The third section explains the power of the "Imperial Star" (Dixing), considered in Daoism as the ruling celestial body. When the Imperial Star takes position, even the Thunder God and Lightning Mother dare not cause disturbances, and the Yellow Emperor (Xuanyuan) cannot oppose it. Detailed listings follow for the Imperial Star's forward-moving positions during Yi-Geng years, Ding-Ren years, Wu-Gui years, etc., as well as its retrograde positions during Jia-Si years and Bing-Xin years.

Finally, there are diagrams arranging the twenty-eight lunar mansions according to different ganzhi day combinations. For instance, Jia-Si days correspond to the Maiden, Emptiness, and Rooftop mansions, while Yi-Geng days align with the Tail and Winnowing Basket mansions.

These contents reflect the ancient Daoist tradition of combining astronomical observation with ritual practices, primarily used for selecting auspicious moments, weather forecasting, and arranging religious activities. The mentioned concepts of lunar mansions and ganzhi cycles remain essential elements in Daoist ritual arts.

This passage explains how ancient Daoist rainmaking and sun-summoning rituals were performed according to celestial phenomena and stellar positions. The listed constellations (such as Liu-Xing, Jing-Gui, and Zi-Shen from the Twenty-Eight Lunar Mansions) and their corresponding dates (Bing-Xin, Wu-Gui, Ding-Ren days from the traditional Heavenly Stems and Earthly Branches calendar) held specific meteorological significance.

When constructing altars and issuing talismanic decrees (fulu), practitioners had to follow the stellar position charts mentioned earlier. For instance, rainmaking talismans should be placed at the position of the Bi constellation (one of the Twenty-Eight Mansions), while sun-summoning talismans required placement at the Xing constellation position.

The text then explains the characteristics of five specific stars:

• The Bi constellation (Wall-Water Yak) in the northwest Qian-Hai position corresponds to river dolphins; its appearance heralds wind and cloud changes.
• The Kang constellation (Neck-Gold Dragon) in the southeast Chen-Xun position represents dragons; their ascent generates cloud qi.
• The Wei constellation (Tail-Fire Tiger) in the northeast Gen-Yin position symbolizes tigers; their roars summon winds.
• The Yi constellation (Wings-Fire Snake) in the southeast Xun-Si position represents snakes; their appearance brings strange winds.
• The Zhen constellation (Chariot-Water Earthworm) also in the southeast Xun-Si position - when earthworms appear, rain follows.

Finally, nine types of talismans correspond to specific weather conditions:

1st talisman governs clear skies

2nd Celestial Ministry talisman controls overcast or clear weather

3rd Earth talisman governs thunderstorms

4th Wind Earl talisman brings rainfall

5th Thunder Duke talisman gathers clouds and wind

6th Rain Master talisman controls thunderstorms

7th Wind-Cloud talisman induces rainfall

Both the 8th Lightning talisman and 9th Imperial Seal talisman govern clear weather.

(These practices reflect how ancient Daoism combined astronomical observation with ritual magic, using specific stellar configurations and talismans to predict or influence weather patterns.)

This scripture details the operational methods of Daoist Thunder Rituals (a technique for summoning wind and rain), along with the temporal rules for transitioning the Monthly Generals (adjusting the directional positions of the lunar generals).

For a Daoist practitioner seeking to summon wind, clouds, thunder, or rain, the most expedient method is as follows: Select the corresponding Thunder God’s direction for that day, burn talismans (fulu) at the "Flying Palace" where the Thunder God resides, and combine this with Pacing the Dipper (a ritual Daoist footwork) and hand seals (finger mudras). This will naturally invoke wind, rain, thunder, and lightning. The Flying Palace, Hidden Palace, Wandering Palace, and Governing Palace are the four key directions where Thunder Gods gather. The specific procedure is:

First, burn talismans and recite incantations (the Wood Youth Divine Chant and the Celestial Youth Inner Chapter) at the Flying Palace. If no effect is produced, move to the Hidden Palace to perform the ritual. If still unsuccessful, shift to the Wandering Palace. If the response is sluggish, issue a written summons (a ritual proclamation) at the Opposing Palace (the direction directly opposite the Governing Palace) to hasten the result. In cases where Heaven and Earth are sealed, and all eight directions are impassable, the summons must be issued at the Governing Palace. At this point, if the Opposing Palace is activated, violent wind and rain will immediately manifest. The practitioner must swiftly turn and take shelter within the Dipper’s Mouth (a ritual direction) to avoid backlash from the ritual’s power.

The temporal rules for transitioning the Monthly Generals are as follows:

• First Month (Zhengyue): On the day before the Rain Water solar term, at Mao hour (5–7 AM), the General of Ascending Brightness (Dengming) takes position in the Hai direction (north-northwest).
• Second Month: Two days after the Spring Equinox, at Xu hour (7–9 PM), the General of River Chief (Hekui) takes position in the Xu direction (north-northwest).
• Third Month: Four days after the Grain Rain, at Hai hour (9–11 PM), the General of Following Chief (Congkui) takes position in the You direction (due west).
• Fourth Month: Four days after the Lesser Fullness, at Wei hour (1–3 PM), the General of Transmitting Messenger (Chuansong) takes position in the Shen direction (west-southwest).
• Fifth Month: Five days after the Summer Solstice, at Wei hour, the General of Minor Auspice (Xiaoji) takes position in the Wei direction (southwest).
• Sixth Month: Three days after the Great Heat, at Si hour (9–11 AM), the General of Victorious Light (Shengguang) takes position in the Wu direction (due south).
• Seventh Month: Three days after the End of Heat, at Si hour, the General of Supreme Unity (Taiyi) takes position in the Si direction (south-southeast).

(Note: Monthly Generals are divine officers representing the presiding deities of each month in ancient Chinese divination. "Transitioning the General" refers to the timing and directional shift as the lunar generals alternate.)

This passage explains the calculation method of the "Golden Tiger Great Sha" (金虎大煞) in Daoist date-selection practices, which belongs to the temporal-spatial computation system within Daoist liturgy (Keyi). Here's a modern interpretation of its principles:

First, determine the time and direction according to lunar months and solar terms: Beginning from the fourth day after the Autumn Equinox in the eighth month, the Tian Gang Star (天罡) is activated at the Chen position (southeast by east) during the Yin hour (3-5 AM). From the ninth day after Frost's Descent in the ninth month, the Tai Chong Star (太衝) is activated at the Mao position (due east) during the Chou hour (1-3 AM). Subsequent months from October to December follow similar patterns, where specific days after Minor Snow, Winter Solstice, and Major Cold respectively mark the activation of deities like Gongcao (功曹), Daji (大吉), and Shenhou (神后) at designated hours and directions.

The calculation rules for the "Golden Tiger Great Sha" are then explained: The starting direction and sequence (clockwise or counterclockwise) are determined by Heavenly Stem combinations. For instance, on Jia-Ji days, begin at the Kun position (southwest) and proceed clockwise; on Yi-Geng days, start from Li (due south) moving counterclockwise; on Bing-Xin days, commence at Zhen (east) counterclockwise; on Ding-Ren days, initiate from Xun (southeast) clockwise; and on Wu-Gui days, begin at Dui (west) clockwise.

The text further details specific Heavenly Stem-Earthly Branch combinations and their corresponding directions: Jiazi day aligns with Kun, Jiaxu with Zhen, Jiashen with Xun, Jiawu with the Central Palace, and so forth. Each combination corresponds to specific positions in the Eight Trigrams (Bagua)—Kun, Zhen, Xun, Qian, Dui, Gen, Li, Kan—or the central position.

These computational methods are primarily used in Daoist purification rituals (Zhaijiao), talismanic magic (Fulu), and other ceremonial contexts. By aligning specific times with precise directions, practitioners enhance the efficacy of rituals. Deities like Tian Gang and Tai Chong belong to Daoism's extensive pantheon of celestial marshals, whose invocation and placement during ceremonies must follow these established rules.

This passage explains the Daoist divination method for calculating the position of the "Flaming Malefic Star" (流火凶星), using the Heavenly Stems and Earthly Branches (ancient calendrical symbols) in conjunction with the eight trigrams (Bagua) directions to predict fortune and misfortune. Each combination of stems and branches corresponds to a specific trigram direction—for instance, "Geng-Xu" corresponds to the Gen trigram (northeast), while "Geng-Shen" aligns with the Dui trigram (west).

The calculation follows the principle of "yang proceeds clockwise, yin moves counterclockwise": in a year beginning with the stem "Jia," the malefic star moves clockwise, while in a yin year, it shifts counterclockwise. For example, "Jia or Xin in the Kun position" means that when the Heavenly Stem is Jia or Xin, the malefic star resides in the Kun trigram (southwest). Similarly, "Bing or Ren in the Qian position" indicates that with stems Bing or Ren, the star is located in the Qian trigram (northwest).

A special case is noted: "Wu or Ji returns to sit in the serpent's center," referring to years with the stems Wu or Ji, when the malefic star occupies the central palace (the center of the eight trigrams). This alignment is prone to triggering major calamities, as the saying goes, "A single clash of the Flaming Star shakes the heavens."

The text further details the fixed correspondences between each of the sixty stem-branch combinations (the sexagenary cycle) and their respective trigram directions. For example, the Jia-Zi year aligns with the Kun position, while the Jia-Xu year corresponds to the Zhen trigram (east). These relationships are immutable, allowing Daoist priests performing rituals to determine the malefic star's location based on the current year's stem-branch pair and take appropriate measures to avert misfortune.

This passage explains the directional calculation methods in Daoist "Dunjia" numerology, primarily concerning the correspondence between celestial stems, earthly branches, and the eight trigrams (Bagua) directions. In Daoist cultivation and ritual practices, these correspondences are commonly used for selecting auspicious occasions and arranging ritual formations.

The celestial stems (Jia, Yi, Bing, etc.) and earthly branches (Zi, Chou, Yin, etc.) combine to form the sixty Jiazi cycles, with each pairing corresponding to one of the eight trigrams directions (Qian as northwest, Kun as southwest, etc.). For example, "Xinwei" corresponds to "Xun" (southeast), while "Xinsi" aligns with "Zhen" (east). The trigram symbols in parentheses indicate the directional correspondence for each stem-branch combination.

"Zhifu" (Direct Talisman) is a core concept in Dunjia arts, representing the presiding deity of a specific time period. The statement "the messenger is the Zhifu" indicates their equivalent efficacy. The calculation method begins inversely from Jiazi, following the "Three Periods" (Upper, Middle, and Lower Yuan) principle with Gen (northeast) as the starting point. When a particular day-hour combination reaches a specific direction, its auspicious or inauspicious nature becomes definitive.

The complete sixty Jiazi correspondence table with trigram directions is provided, showing for instance "Jiazi" corresponds to "Kun" (southwest), as does "Yichou." These relationships are applied in Daoist rituals to determine ceremonial orientations and select favorable timings. The notation "Zhong" represents the central direction, holding special significance in Dunjia practice.

It should be noted that these correspondences originate from esoteric Daoist transmissions, with possible minor variations among different lineages. Practical application requires comprehensive consideration of specific time periods, solar terms, and other contextual factors.

This passage explains the specific rules and combinatorial arrangements of "sound transmission" (chuanyin), a Daoist divination method. It involves correlating the Heavenly Stems and Earthly Branches (such as Renshen, Jiazi, etc.) with the Eight Trigrams (Bagua: Qian, Dui, Gen, Li, Zhong, Xun, Zhen, Kun, Kan) to establish particular correspondences.

The arrangement proceeds as follows: Beginning with Jiazi, each Stem-Branch combination sequentially pairs with a trigram. For instance, Jiazi corresponds to Qian (Heaven) trigram, Jiaxu to Dui (Lake), Jiashen to Gen (Mountain), Jiawu to Li (Fire), and so forth. The "Central Palace" (Zhonggong)—the central position among the Eight Trigrams—is also incorporated at intervals.

The phrase "the sound transmission method swift as flight" describes the rapid calculation speed of this technique. "Qian trigram's Jiazi initiates stellar shifts" indicates the computation begins with the Qian trigram's corresponding Jiazi and progresses according to specific patterns. "Traverse the Three Origins [upper, middle, and lower periods] to locate the present day" refers to determining daily correlations by following the Three Origin sequence (Shangyuan, Zhongyuan, Xiayuan). "The straight talisman's sound transmission follows set rules" denotes this method's fixed computational principles.

The parenthetical trigram sequence (Qian-Dui-Gen-Li-Zhong-Xun-Zhen-Kun-Kan) displays the complete Bagua directional order. Such arrangements are frequently employed in Daoist ritual practices for selecting auspicious dates, divination, or altar configurations—using the Stem-Branch and trigram correspondences to calculate favorable directions or timings.

This passage documents the correspondence between the positions of the "Imperial Star" (the primary celestial body in Daoist stellar veneration) and the sexagenary cycle (the traditional calendrical system combining heavenly stems and earthly branches) within Daoist talismanic rituals. Each stem-branch pair corresponds to one of the eight trigrams (Bagua: Qian, Dui, Gen, Li, Zhen, Xun, Kun, Kan) and their associated directions.

For example, "Gui-You (Qian)" indicates that during a Gui-You year or day, the Imperial Star resides in the Qian trigram direction (northwest); "Gui-Wei (Dui)" means that in a Gui-Wei year or day, the star is positioned in the Dui trigram direction (west). The term "fixed position of the Imperial Star" refers to its stationary orientation, while "progressive movement of the Imperial Star" describes its sequential shift according to a specific order.

The middle section details the sixty stem-branch combinations and their trigram correspondences. For instance, "Jia-Zi (Zhen)" signifies that during a Jia-Zi year or day, the Imperial Star is located in the Zhen trigram direction (east); "Yi-Chou (Dui)" indicates that in a Yi-Chou year or day, it occupies the Dui trigram direction (west).

These correlations are primarily used in Daoist ritual practices for selecting auspicious dates and determining spatial orientations. Practitioners rely on these directional relationships to decide their positioning and facing during ceremonies. For example, on a Gui-You day, special attention must be paid to the northwest, while on a Jia-Zi day, the east holds particular significance. This system reflects the Daoist cosmological framework that integrates astronomical cycles with the Bagua's spatial symbolism.

This scripture details the practice and taboos of Daoist Thunder Magic (a ritual for summoning lightning). It consists of several key components:

The first section concerns timing selection for thunder summoning. Based on combinations of celestial stems and earthly branches, different days carry distinct animal symbolism—for instance, Jia-Si days correspond to "dragons soaring and roosters crowing," while Yi-Geng days signify "tigers roaring and sheep flourishing." These omens indicate the auspiciousness of ritual performance, requiring alignment with celestial mechanisms (natural laws) when executing Thunder Magic.

Next comes the spatial orientation for Thunder Magic. The text meticulously lists the corresponding Bagua (Eight Trigrams) directions for specific days (e.g., Xu-Hai-Zi-Chou days align with Gen position; Wei-Shen-You days correspond to Xun position). Practitioners must perform "flying the Gang steps and forming hand seals" (ritual footsteps and mudras) while burning Fulu (talismans) at these designated directions to summon the Thunder God's power.

The third section explains how to calculate the precise moment for thunder activation. Beginning from the position of Tai Sui (Jupiter), count backward from the first lunar month to the current month, then count forward from the Hai hour (9-11 PM). The first Mao hour (5-7 AM) encountered marks the exact time for thunder activation. Violating this sacred moment risks being struck by lightning and reduced to dust.

Subsequent passages outline the "rules for the Fire Spirit's eight-directional movements"—the shifting Bagua positions across different days. For example, on Zi days, conceal in Kan position, manifest in Li position, and strike from Xun position; on Chou days, hide in Gen position, appear in Qian position, and attack from Zhen position.

The conclusion presents the "Thunder Arrow Method's" sequence of twelve stellar deities from the Thunder Ministry, including Zunxing (Zi position), Pili (Chou position), and Yuguang (Yin position). The calculation method follows the celestial stems' lu positions (earthly branch correspondences) through twelve cyclical palaces. For instance, Jia-Ji days begin calculations from the "Yanlie" lu position, while Yi-Geng days start from "Zunxing."

This entire passage contains secret Thunder Magic formulas from Daoist tradition, incorporating complex spatiotemporal calculation systems and strict ritual protocols. Practitioners must adhere precisely to these methods to successfully summon thunder while avoiding karmic backlash.

This passage explains the calculation methods and corresponding deities in Daoist Thunder Magic (techniques for summoning thunderstorms and rain). According to different Heavenly Stem days, one must invoke different thunder department deities from specific positions:

On Bing (丙) and Xin (辛) days, begin calculations from the "Lu position" (auspicious direction corresponding to the Heavenly Stem) to locate the deity Huixia (惠霞, who governs lightning and hail). Bing days correspond to the Si position (southeast), while Xin days correspond to the You position (due west).

On Ding (丁) and Ren (壬) days, start from the Lu position to invoke the deity Taiyi (太乙, who governs gentle rains and dew). Ren days correspond to the Hai position (northwest).

On Wu (戊) and Gui (癸) days, begin from the Lu position to summon the deity Yuguang (玉光, who governs nourishing rains). Gui days correspond to the Zi position (due north), while Wu days correspond to the Si position.

A mnemonic verse explains: When the Thunder Duke (雷公) combines with Huixia, rain will fall. When Taiyi meets Feisha (飞沙, flying sand), thunderbolts and lightning will appear. On special Ding-Jia days, one will witness lightning chariots, while Taiyi descends with gentle rains, and Yuguang's arrival can end droughts. During the Six Jia days (important Daoist dates), when heaven darkens, the Wind Earl (风伯) and Huixia will bring flashing lightning and hail. Whoever masters these calculations becomes the most powerful immortal.

Next, the text describes the calculation methods for the Five Thunders (五雷): Taiyi's true numbers use the yang numbers one, three, seven, and nine. After subtracting nine from any sum exceeding ten, the remainder indicates the timing for thunder activation. For example, on Jia-Ji days, the hours of Zi-Wu correspond to nine; on Yi-Geng days, the hours of Chou-Wei correspond to eight, etc. These must be coordinated with the inauspicious "Golden Tiger Thunder Execution" days (金虎雷霆煞日) and Bagua (八卦) directions.

Finally, it explains that the Ji constellation (箕星, one of the 28 lunar mansions) governs heavenly thunder and winds, while the Bi constellation (毕星) governs water thunder and rainfall. Based on the constellation presiding that day, one prepares corresponding summons (檄文) and talismans (符箓) to ensure immediate divine response. The Ghost constellation (鬼宿, Ghost Golden Sheep) governs spirit thunder, while the Lou constellation (娄宿, Lou Golden Dog) governs demonic thunder (祅雷)—both requiring special attention.

This scripture essentially serves as an operational manual for Daoist Thunder Magic, requiring precise timing, directional alignment, and ritual implements. It belongs to the esoteric ritual systems traditionally transmitted within Daoist lineages.

This passage explains the key principles for selecting auspicious timings and directions in Daoist Thunder Magic (summoning thunder techniques). Several crucial concepts are involved:

When the White Tiger Star (an inauspicious celestial body) and the Thunder Deity appear simultaneously in specific celestial palaces, they can trigger intense thunderstorms. However, practitioners must avoid the "Fu Duan days" (unlucky dates) or their efforts will be in vain. Among the twelve earthly branches' corresponding directions, the four most favorable for Thunder Magic are Gen (northeast), Xun (southeast), Qian (northwest), and Kun (southwest) — even without detailed calculations, these directions remain reliable.

These methods follow Tang dynasty conventions for talismans (Fulu) and imperial seals. The Tian Gang Star (the Big Dipper's handle) represents a fierce general, while the White Tiger is a malevolent deity — both govern thunder's activation. The profound mechanism (Xuanji) behind this is actually straightforward, despite some practitioners' tendency to mystify it unnecessarily.

When the southern Fire Virtue Star (Mars) exhibits abnormal heat (zaohuo), it's an ill omen. Should this fiery Mars, the ominous Yue Bo Star, Tian Gang, White Tiger, and the "Flying Fire Arrow" evil all converge in one celestial palace, immediate thunder will erupt — powerful enough to burn down temples of malevolent spirits.

Important cautions: When the Thunder White Tiger enters the Central Palace (heart region, also called the Crimson Palace), it's like passing through a strategic pass — Thunder Magic should not be performed then. If the Pole Star appears in the Thunder Gate direction, practitioners should also refrain, as responses may be difficult to obtain. The safest method is first calculating the day and hour to locate Tian Gang's position — most potent when in the cardinal directions of Zi (north), Wu (south), Mao (east), or You (west); moderately effective in Yin, Shen, Si, or Hai; and fastest in Chen, Xu, Chou, or Wei directions.

Finally, the passage mentions how the true incantations (Fulu) hidden deep in the "Jade Pass" (Central Palace) can transform water and fire into thunder. Yet the genuine celestial secret is remarkably simple: grasp the core principle, and one can perceive the greater through the lesser.

This scripture details the specific regulations established by the Supreme Unity Primordial Lord (a revered Daoist deity) concerning the directional movements of the Thunder Gods (deities governing thunder and lightning) on different dates, along with corresponding ritual methods.

First, it explains that during ritual practices such as rainmaking, clearing skies, summoning snow, invoking winds, exorcising evil, or eliminating malevolent forces, one must be aware of the Thunder Gods' current directional position to properly inscribe talismans (Fulu), recite scriptures, and perform the ritual steps (Daoist ceremonial footwork known as Gangbu). Only then will the rituals be efficacious.

The author particularly cautions later practitioners: those who know the ritual techniques but remain ignorant of these directional taboos—performing ceremonies recklessly and petitioning the celestial court without regard—will experience delayed responses or entirely wasted efforts. Below are the specific dates with corresponding Thunder God positions and operational essentials:

On Liujia days (celestial stem days containing "Jia"), the Thunder Gods move from the Kun position (southwest) to the Qian position (northwest). For rituals, stand in the Xun position (southeast) while summoning the Thunder Gods facing the Zhen position (east). Additionally, inscribe talismans in the current year's Tai Sui (Year Lord) position, or burn talismans, spirit money, and official documents in the Zhen position for immediate effect.

On Liuyi days, the Thunder Gods judge good and evil at the South Pole Fire Refinement Palace. This day is suitable for using Whirling Fire Talismans, Qingwei School talismans, or other lineage's Fulu, burning spirit money over incense burners for summoning.

On Liubing days, the Thunder Gods enter the Gen position (northeast) from the Kun and Dui Palaces (southwest and due west). Simply inscribe and burn talismans in the Geng-Xin positions (west-northwest) during rituals.

On Liuding days, the Thunder Gods enter the Kan position (due north) from the Li Palace (due south). Burn official documents and spirit money in the Gen position while summoning from the current month's Jianchu position.

Liuwu days are special—on these days, the Thunder Gods convene with the Five Sacred Peaks deities and the Three Origins-Nine Offices (Daoist institutions governing the three realms of yin-yang) to examine human merits and faults in the celestial court, adjusting people's blessings, prosperity, and lifespans. Rituals, incense offerings, and prayers are inadvisable on this day.

On Liusi days, the Thunder Gods submit records of human good and evil to the celestial court. During rituals, burn petitions to the Thunder Ancestor in the Zhen position while summoning facing the Qian position (northwest Celestial Gate).

On Liugeng days, the Thunder Gods enter the Gui position (north-northwest) from the Jia position (east-northeast). Burn talismans and documents in the Earth Door position (southwest), standing in the You position (due west) while summoning toward the Mao position (due east).

On Liuxin days, the Thunder Gods join the Three Offices (Heavenly, Earthly, and Water Officials) to examine insect plagues, rainfall affairs, and the merits of ghosts and spirits. Particular attention to ceremonial protocols (Keyi) is required on this day.

This scripture primarily discusses Daoist methods for weather prediction and rain-summoning rituals, along with related techniques for observing natural omens.

Concerning rain-summoning rituals: Official petitions may be issued during the Wu hour (11 AM - 1 PM), while stepping the Gangbu (a Daoist ritual footwork) toward Tianmen (the Celestial Gate, entrance to the heavenly realm) should be performed during the Xu hour (7 - 9 PM). Burning talismans (Fulu) can summon divine beings. On Liuren days (auspicious dates), the Thunder Deity roams the four directions—these days are suitable for prayers, campaigns against evil, healing rituals, and other ceremonies. On Liugui days (another set of dates), the Thunder Deity appears in the Zhen direction (east); when performing rituals, face the Bing position (south) to invoke. Burning petitions and spirit money at Dihu (the Earth Gate, counterpart to Tianmen) yields immediate results.

The following are secret techniques for weather prediction through celestial observation:

• Morning sun observation: Intense sunlight indicates drought; purple cloud qi foretells heavy rain, jade-green qi signals cold weather, while thick clouds suggest overcast skies. If cloud qi obscures the sun, dimming its light while the clouds remain motionless, rain approaches.
• Moon observation: A white halo with dim moonlight predicts rain; green halos indicate cold, red halos drought, and blue halos heavy fog.
• Big Dipper observation: When white clouds swiftly envelop the Dipper, heavy rain will fall within two or three days.
• Cloud observation: White clouds blanketing the sky foretell strong winds; rapidly moving clouds signal impending rain. Specific cloud qi appearing during Mao-You hours (5-7 AM/PM) or Zi-Wu hours (11-1 AM/PM) can predict rainfall.
• Milky Way observation: Snake-like cloud qi moving through the galaxy means overcast skies the next day; pig-shaped qi guarantees heavy rain within three days.
• Sunlight observation: Multicolored morning glow means wind and rain that day; evening glow ensures clear weather the following day.
• Dark cloud observation: A single black cloud at dawn indicates rain will fall wherever it drifts.
• Tiger cloud observation: Wherever these distinctive clouds appear, rain will follow—performing rituals at this time can immediately summon thunder.

The text concludes: One must comprehend all celestial and terrestrial signs, comprehensively observing the patterns of change in the Three Powers (heaven, earth, and humanity). Fixation on single methods risks violating the principles of celestial timing and human affairs. The Dao of Yin-Yang transformation is clear—as the ancients said, extreme heat begets wind, revealing the profound mechanism of nature's workings.

This scripture primarily discusses the thunder methods (a Daoist ritual technique invoking thunder deities through talismans and incantations) for predicting wind, rain, thunder, and lightning by observing celestial phenomena, along with corresponding temporal correspondences.

On temporal correspondences:

The "Three Harmonies" (Sanhe) refer to the four sets of three-hour periods: Shen-Zi-Chen, Yin-Wu-Xu, Hai-Mao-Wei, and Si-You-Chou—commonly used combinations in Daoist ritual practice. The "Four Oppositions" (Sichong) denote three groups of conflicting hours: Zi-Wu-Mao-You, Yin-Shen-Si-Hai, and Chen-Xu-Chou-Wei.

Key principles for celestial observation:

The thunder deities' proclamations hang high in the heavens—these oral formulas have been secretly transmitted through generations. When witnessing phenomena like dark cloud masses, flickering lightning, or continuous rainfall, it signifies the imminent efficacy of thunder rituals. Regardless of the observation direction, the patterns of celestial changes remain consistent.

Specific omen interpretations:

Morning clouds in the Qian (northwest) position or evening clouds in the Xun (southeast) position may show cloud movements, but if sunlight shines directly overhead, these signs may prove unreliable. The most accurate observation period typically occurs as the Wu hour (11 am–1 pm) concludes and the Wei hour (1–3 pm) begins.

Cloud formations and their predictions:

Red clouds resembling "black pigs spitting fire" appearing in groups often foretell storms. If rain persists uninterrupted into the next day, overcast skies may clear by dusk. When smoke-like clouds envelop cauldron-shaped formations while sunlight remains visible, mountain drizzles often follow. Crimson mists portend intense heat, while white rainbows piercing the sun warn of disastrous floods.

Thunder intensity assessment:

Thunder accompanying white clouds tends to be milder; when white clouds fully obscure the sky, rainfall intensifies. Only when white qi permeates the heavens does it signal true rain signs. Passing sheep-shaped cloud clusters also bring precipitation. Scarlet and violet cloud masses usually accompany thunder and lightning.

Exceptional phenomena:

Black clouds correspond to obstructions, while fire clouds may trigger floods. When gloomy haze lingers unbroken—with blue smoke shrouding westward-moving fire clouds—and eastern-western clouds mirror each other, smog forms. Within three days of fire cloud appearances, rolling black clouds bring sudden downpours. Abrupt high-altitude rotating clouds guarantee tempests the next day—small rotations bring mild winds, large ones shake mountains and earth.

Additional signs:

When vertical cloud pillars thrust straight toward the celestial center, torrential rains will drench the corresponding direction. If regional clouds fail to respond, weather remains partly cloudy. Golden sand-like reflections on the ground unmistakably signal storms. Sudden horizon-spanning rainbows with mountaintop sun reappearing foretell three continuous rainy days if the rainbow bisects the sky; dispersed sunlight transforms rain into sweet dew. When river surfaces show subtle tide marks matching black clouds, dense fog will prevail.

This scripture reveals the ancient Daoist masters' secret methods for weather prediction through celestial observation. When fire clouds (red-hued clouds) appear opposite the crimson sun, sunlight will soon break through the cloud layers. Should irregular cloud formations suddenly level out, or if solar rays emerge through flat-topped clouds, these signs foretell clearing weather.

Observe the layered accumulation of bluish mist resembling smoke, carefully distinguishing its density: when thin mist lacks defined lower contours, sunshine will appear; whereas thick mist with clearly outlined bases portends prolonged rainfall. If dark clouds suddenly converge from all directions yet only descend on three sides, calamity will be averted. Should strong winds or rainbows accompany this phenomenon, clear skies often return by the next day.

The "black swine crossing the river" phenomenon (dark cloud masses resembling pigs swimming) holds particular significance: spotting three to five drifting cloud clusters guarantees rain by the third night watch, while a single cloud traversing the Heavenly River (Milky Way) makes half-day forecasts uncertain. When fish-scale patterns emerge within dark clouds, thunderstorms will soon follow; but if crimson clouds display scaly armor patterns, the dark clouds will disperse into fair weather.

The text concludes by emphasizing these celestial secrets were transmitted by ancient sages (referring to realized adepts), requiring strict temporal calculations. Such knowledge must be shared judiciously, for heavenly mysteries should not be lightly revealed to worldly people.