Story Idea: The Reason for Sun Wukong’s Rebellion

From time to time I like to post a fun blog not directly related to (though sometimes informed by) my research. Regular articles will resume after this entry.

I have previously posted a few of my story ideas regarding the Monkey King’s birth and training under Master Subhuti. For instance, this article provides two possible origins for our hero: 1) he is the spiritual offspring of primordial and highly respected ape immortals, who themselves rebel against heaven after a long period of exile; 2) he is the offspring of an ancient, rebellious martial god who wishes to overthrow heaven. This latter origin is tied to another idea where Wukong is a soldier-monk in Subhuti’s immortal monastic army similar to Shaolin. This is where my current idea begins. 

During Monkey’s early Daoist training, his mind is subtly corrupted by one of his magic powers, namely his famous 72 transformations (qi shi er bianhua, 七十二變化). Now, I can already hear my readers saying, “What?!” Well, there is a good reason for this idea. The actual name for this power of metamorphosis is the “Multitude of Terrestrial Killers” (Disha shu, 地煞數). [1] It is named after a host of malevolent stellar deities (fig. 1) who are described in various sources as bringers of bad luck and disease:

The Seventy-two malignant stellar gods, called Ti-shah 地煞, enemies of man, and causes of all diseases and ailments (Doré & Kennelly, 1916, p. xviii).

They are described as star generals inhabiting the stars of the Big Dipper, invoked by the Taoists to control evil spirits. But they are also believed to be evil influences on earth causing misfortune and disease (Pas & Leung, 1998, p. 293)

Similar to the 36 Rectifiers [tiangang, 天罡], the 72 Terrestrial Killers are frightening gods. In keeping with the link between celestial bodies and earthly spaces and with their function as timekeepers, the Killers originate from disruptive—and usually unexpected—collisions between the courses of time and space. In ritual contexts the 72 Killers are a common occurrence, prominently understood as a possible cause for disease or death. Preying on the 72 “passes” (關 guan) that connect the human body to all aspects of the cosmos, they can cause all sorts of maladies—especially for small children. Daoists commonly apply apotropaic rituals to prevent the working of these “killers of the passes” (關煞 guansha) (Meulenbeld, 2019).

Fig. 1 – The “72 Killer Deities” (Qi shi er Shashen, 七十二煞神) folk print from the Anne S. Goodrich Collection (larger version).

In the novel, Wukong originally learns the transformations in order to hide from three calamities of thunder, fire, and wind sent by heaven as punishment for defying his fate and becoming immortal. In my story, I imagine Master Subhuti would warn Monkey to guard his spirit while mastering the magic power as some individuals might be influenced by the “baleful stars” (xiong xing, 凶星). And this is exactly what happens to the young immortal. The stellar gods exploit a chink in his spiritual armor (possibly due to his background) and feed him small suggestions that have compounding effects on his personality, making him increasingly egotistical and combative. This ultimately leads to his attempt to usurp the throne of heaven. I’m open to suggestions.

Notes:

1) Yu (Wu & Yu, 2012) translates the skill as the “Art of the Earthly Multitude”, thus glossing over the 72 Terrestrial Killers (vol. 1, p. 122). Other translations for Disha (地煞) are “Earthly Fiends” and “Earthly Assassins” (Shi, Luo, & Shapiro, 1993, p. 1138, for example; Pas & Leung, 1998, p. 293). I follow the translation from Meulenbeld (2019).

Sources:

Doré, H., & Kennelly, M. (1916). Researches into Chinese superstitions: Vol. 3 – Superstitious practices. Shanghai: T’usewei Printing Press. Retrieved from https://ia800709.us.archive.org/2/items/researchesintoch03dor/researchesintoch03dor.pdf

Meulenbeld, M. (2019). Vernacular “Fiction” and Celestial Script: A Daoist Manual for the Use of Water Margin. Religions10(9), 518. MDPI AG. Retrieved from http://dx.doi.org/10.3390/rel10090518

Pas, J. F., & Leung, M. K. (1998). Historical Dictionary of Taoism. Lanham, Md.: Scarecrow Press.

Shi, N., Luo, G., & Shapiro, S. (1993). Outlaws of the Marsh. Beijing: Foreign Languages Press.

Archive # 11 – The Origin of Sun Wukong’s 72 Transformations

Upon Sun Wukong achieving immortality, his Buddho-Daoist master Subhuti warns him of three calamities sent by heaven to kill those who defy their fate and attain eternal life. The Sage then offers to teach Monkey one of two forms of transformation in order to avoid this outcome by living in hiding. [1] The first form, called the “Multitude of the Heavenly Ladle” (Tiangang shu, 天罡數), contains thirty-six changes, while the second, the “Multitude of Earthly Fiends” (Disha shu, 地煞數), contains seventy-two. [2] Our hero chooses the latter and quickly masters a set of secret oral formulas (koujue, 口訣). This becomes one of his signature abilities used throughout the narrative. Monkey’s most famous use of the skill appears in chapter six when he battles Lord Erlang, a divine demon queller and fellow master of transformations (video 1).

Video 1 – Sun’s battle with Lord Erlang. From the great animated Classic Havoc in Heaven (1965).

I. Connection to Chinese astrology and literature

The names of the two forms of transformation that Subhuti offers to teach Monkey can be traced to Chinese astrology. The “Heavenly Ladle” (Tiangang, 天罡; i.e. the Big Dipper) is associated in some traditions with thirty-six stars (fig. 1). Regarding the origin of these stellar bodies, Werner (1932/1969) explains: “The gods of these stars (all stars of good omen) are all heroes who fell on the field of battle in the epic combat known as Wan Xian Zhen 萬仙陣, “The Battle of the Myriad Genii [or Immortals]” (p. 506). [3]

Sun Wukong Transformation - 36 Heavenly Ladle Stars - small

Fig. 1 – A list of the thirty-six Heavenly Ladle stars (larger version). Photograph of Werner, 1932/1969, p. 506. Apologies for not having access to a scanner at this time. 

Furthermore, he writes that the “Earthly Fiends” (Disha, 地煞) are:

[S]eventy-two stars [fig. 2] of evil influence, opposed to the Tiangang. The wicked genii of these stars are cast out and slain by tongzi 童子 magicians [i.e. spirit mediums], who impale them on forks and shut them up in earthen jars, then take them to waste lands, throw them into fires, and surround the spot with a circle of lime, which is supposed to prevent any spirit which may have survived the burning from getting out of it (Werner, 1932/1969, p. 496). [4]

Sun Wukong Transformation - 72 Earthly Fiend Stars - small

Fig. 2 – A list of the seventy-two Earthly Fiend stars (larger version). Photographs of Werner, 1932/1969, pp. 496-497.

Additionally, the Earthly Fiends are considered the “enemies of man, and causes of all diseases and ailments” (Doré & Kennelly, 1916, p. xviii). Several Buddho-Daoist folk talismans exist to ward afflictions caused by the Fiends. One such Buddhist talisman said to cure the “one hundred ailments” even invokes the thirty-six Heavenly Ladle stars to aid in the conquering of the seventy-two demons:

An order is hereby made by the “Ministry of the Thunderbolt”, commanding in the name of the “three religions” that the auspicious stellar gods, Tiangang 天罡, reduce to order the maleficent demons, Disha 地煞, who have caused this disease. The charm must also repress these malignant beings and expel them forthwith (fig.3) (Doré & Kennelly, 1916, p. 312).

Di-sha talisman spell #2- small

Fig. 3 – A reproduction of the illness-curing Buddhist Talisman (larger version).

It’s interesting that Sun Wukong chooses the transformation method centered around stars of evil influence and later becomes a demon who challenges heaven. [5] Good fodder for fan fiction, no?

When these dichotomous stellar bodies were first acknowledged isn’t exactly clear. [6] But the Heavenly Ladle stars go back to at least the mid-13th-century as they are mentioned in the Old Incidents in the Xuanhe period of the Great Song Dynasty (Da Song Xuanhe Yishi, 大宋宣和遺事) (Anonymous, n.d.), a storytelling prompt of the late-Song to early-Yuan. It contains the earliest stories associated with the Water Margin (Shuihu zhuan, 水滸傳, c. 1400), a Chinese classic that predates Journey to the West. The one hundred and eight heroes of this novel are famous for being reincarnations of the Heavenly Ladle and Earthly Fiend stars, a fact revealed in chapter seventy-one when a heaven-sent stone slab is found to list their human names along with the corresponding stellar titles. The long association of the stars with the hugely popular Water Margin novel therefore may have inspired the names for the techniques taught by the sage Subhuti in Journey to the West.

II. Ties to Daoist practices

Robinet (1979) expertly explains that transformation (bianhua, 變化), or “metamorphosis” as she calls it, is central to Daoism. Gods and Saints are portrayed in Daoist literature as being in constant flux, changing with the seasons, taking on different guises and titles, disappearing and reappearing, never remaining the same, thereby living eternally. Daoists and magicians achieve metamorphosis through external and internal alchemical processes, the former involving the ingestion of drugs and talismans and the latter via mental exercises. Those who succeed in their practice can divide themselves endlessly; create rivers, mountains, and forests from meager samples of water, earth, and seeds; and, most importantly, change their form into anything (fig. 4), including the five elements, dragons, clouds, rays of light, or even celestial bodies like the sun and moon. 

72 Transformations Childrens Book - small

Fig. 4 – The cover of a vintage children’s flip book about Monkey’s transformations (larger version). Here he is seen changing into a fish.

Interestingly, transformations could be used to live in hiding, much like originally intended by Subhuti in Journey to the West. Adepts still questing for immortality could magically transform a sword, staff, or slipper into their deceased body, thereby faking death and escaping elsewhere to find a method leading to eternal life. (Often times, those who took this route assumed a new identity to avoid heaven’s gaze (Campany, 2005)). Additionally, sages are said to use their powers to hide in the earth or in the light of the sun, moon, and stars. One source mentions adepts hiding by scattering their shadow and transforming it into seventy-two types of light. In a related book chapter, Robinet (1993) notes this number “alludes to [Laozi’s] seventy-two supernatural marks” (clearly borrowing from the Buddhist Mahapurusa laksana) (p. 166). This is fascinating as it shows there is precedent for seventy-two transformations in Daoism.

III. Archive link

I have archived Robinet’s (1979) wonderful paper on metamorphosis. It can be read here:

Click to access robinet-metamorphosis.pdf

Disclaimer

This has been posted for educational purposes. No malicious copyright infringement is intended. Please support the official release.

Notes:

1) It should be noted that the calamities are sent every five hundred years. Sun never has to live in hiding, though, as he is trapped under Five Elements Mountain upon the five hundredth anniversary of his immortality (he lived to be roughly four hundred prior to taking up spiritual cultivation). And he achieves Buddhahood prior to reaching the one thousandth year of his immortality, so he never has to guard against subsequent calamities.

2) The translation of these names are loosely based on Anthony C. Yu (Wu & Yu, 2012, vol. 1, p. 122). I have provided more accurate names based on related Chinese literature (see section one above).

3) Source changed slightly. I updated the Wade-Giles to Pinyin. This refers to a military trap appearing in the Chinese classic Investiture of the Gods (Fengshen yanyi, 封神演義, 16th-century), which was published around the same time as Journey to the West

4) I’ve previously mentioned a similar ritual in the first section of this article.

5) Conversely, Zhu Bajie is shown capable of thirty-six transformations (for example, Wu & Yu, 2012, vol 2, p. 328), meaning he studied the method associated with the stars of good omens. And of course we know his sordid story…

6) Though, in my opinion, the thirty-six stars are likely based on the thirty-six generals led by the stellar exorcist, Marshal Tianpeng (天蓬, i.e. Zhu Bajie’s former incarnation), who is himself one of the nine stars of the Big Dipper. The Marshal and his generals appear in the liturgy of the Song-era “Correct Method of the Celestial Heart” (Tianxin zhengfa, 天心正法) exorcist tradition (Anderson, 2008).

Sources:

Anderson, P. (2008) Tianxin zhengfa In F. Pregadio (ed.), The encyclopedia of Taoism: Vol 1-2 (pp. 989-993). Longdon: Routledge.

Anonymous. (n.d.). Da Song Xuanhe Yishi [Old incidents in the Xuanhe period of the Great Song Dynasty]. Retrieved from https://ctext.org/wiki.pl?if=gb&res=290731&searchu=%E5%A4%A9%E7%BD%A1

Campany, R. (2005). Living off the Books: Fifty Ways to Dodge Ming 命 [Preallotted Lifespan] in Early Medieval China In C. Lupke (Ed.), The Magnitude of Ming: Command, Allotment, and Fate in Chinese Culture (pp. 129-150). University of Hawaii Press.

Doré, H., & Kennelly, M. (1916). Researches into Chinese superstitions: Vol. 3 – Superstitious practices. Shanghai: T’usewei Printing Press. Retrieved from https://ia800709.us.archive.org/2/items/researchesintoch03dor/researchesintoch03dor.pdf

Robinet, I. (1979). Metamorphosis and deliverance from the corpse in Taoism. History of Religions, 19(1), 37-70.

Robinet, I. (1993). Taoist meditation: The Mao-shan tradition of Great Purity. Albany: State University of New York Press.

E. T. C. Werner (1969). A dictionary of Chinese mythology. New York: The Julian Press. (Original work published 1932)

Wu, C., & Yu, A. C. (2012). The journey to the West: Vol. 1-4. Chicago, Illinois: University of Chicago Press.

Sun Wukong’s Strength-Bestowing Ritual

In chapter 88, the pilgrims arrive in the lower Indian prefecture of Jade Flower District (Yuhua xian, 玉華縣), which strikes Tripitaka as a spitting image of the Tang Chinese capital of Chang’an. There, the disciples’ monstrous appearance rouses the local ruler’s three sons to action, respectively wielding two staves and a battle rake against what they think are demons come to harm their father. However, they soon learn Monkey, Pigsy, and Sandy are celestial warriors possessing magical versions of their mere earthly arms. The three princes are later accepted as disciples, the oldest wanting to learn Monkey’s techniques and the second and third oldest wanting to learn from Pigsy and Sandy in turn. But when they fail to lift the monks’ celestial weapons, Monkey performs an arcane ritual in which he bestows each prince with superhuman strength and durability:

In a secluded room behind the Gauze-Drying Pavilion, Pilgrim traced out on the ground a diagram of the Big Dipper. Then he asked the three princes to prostrate themselves inside the diagram and, with eyes closed, exercise the utmost concentration. Behind them he himself recited in silence the true sayings of realized immortality and intoned the words of Dharani as he blew divine breaths into their visceral cavities. Their primordial spirits were thus restored to their original abodes. Then he transmitted secret oral formulas to them so that each of the princes received the strength of tens of thousands of arms. [1] He next helped them to circulate and build up the fire phases, as if they themselves were carrying out the technique for shedding the mortal embryo and changing the bones. Only when the circulation of the vital force had gone through all the circuits of their bodies (modeled on planetary movements) did the young princes regain consciousness. When they jumped to their feet and gave their own faces a wipe, they felt more energetic than ever. Each of them, in fact, had become so sturdy in his bones and so strong in his ligaments that the eldest prince could handle the golden-hooped rod, the second prince could wield the nine-pronged muckrake, and the third prince could lift the fiend-routing staff (Wu & Yu, 2012, pp. 202-203).

I. Explanation

1. “Pilgrim traced out on the ground a diagram of the Big Dipper.”

The Big Dipper (gang dou, 罡斗), also known as the Northern Dipper (beidou, 北斗), is a pattern of seven stars associated with the constellation Ursa Major (fig. 1). Daoism considers the pole star of this pattern to be the center of the cosmos through which imminates “primordial breath” (generative qi), which has long been deified as the great god Taiyi. The constellation is associated with a Daoist ritual known as Bugang (步綱/罡, “Walking the Guideline”) in which a practitioner paces the Big Dipper pattern with their feet on the ground. This ritual dance is synonymous with the much older shamanistic Yubu (禹步, “Paces of Yu”) used by ancient Sage Kings to conquer primordial chaos by pacing the stars and planets into motion, thereby directing the seasons and passage of time. The ritual involved pacing an inwardly spiraling circular pattern while dragging one foot behind the other in imitation of the limp adopted by Yu the Great after over-exerting himself quelling the fabled World Flood (fig. 2). Later Daoists viewed Yubu as a means of gaining immortality because the limping, three pace-style walking pattern symbolized the practitioner spanning the three realms of Earth, Man, and finally Heaven (this has an interesting Vedic correlation). [2] But, most importantly, by the Tang and Song dynasties, bugang served the purpose of purifying the area before an altar, ensuring the liturgy to follow takes place in a consecrated space. In fact, some sources interchange the characters for Bugang with the homonyms 布剛, meaning “distributing strength”, which denotes the demonifugic properties of the dance (Andersen, 1989). Therefore, Monkey draws the Big Dipper talisman on the ground in order to create a sacred space free of any negative influences.

big dipper anf yu pace

Fig. 1 – The location of the Big Dipper in relation to the Ursa Major constellation (larger version). Originally from this Futurism article. Fig. 2 – A diagram showing the inwardly spiraling pattern of Yubu (top) and the dipper pattern of Bugang (bottom) (larger version). Take note of the spiral’s limping, three pace-style walking pattern. Originally found on this wordpress article.  

2. “Then he himself recited in silence the true sayings of realized immortality and intoned the words of Dharani…”

The “true sayings” (zhenyan, 真言) is the Chinese term for Mantra, meaning “spell” or “magical formula”. A mantra is “a syllable or series of syllables that may or may not have semantic meaning, most often in a form of Sanskrit, the contemplation or recitation of which is thought to be efficacious” (Robert & David, 2013, p. 529). The most famous mantra is of course Om Mani Padme Hum, the very same six-syllable prayer that was used to weigh down the mountain holding Monkey prisoner for rebelling against heaven.

The “true sayings” is often used as an abbreviation for Dharani (tuoluoni/zongchi, 陀羅尼/總持), a Sanskrit term meaning “mnemonic device” (fig. 3). Like mantras, dharani are comprised of syllables, but these instead serve to remind practitioners of broader concepts, for example a single syllable representing the first letter of a much longer phrase. There exists four types of dharani said to be used by Bodhisattvas to achieve enlightenment: 1) those used for teaching interpretations of Buddhist law; 2) those used for understanding the exact meaning of important words; 3) those used for casting spells; and 4) those used for spiritual endurance in the face of suffering (Robert & David, 2013, pp. 241-242). The third type, which concerns us, falls under a category of sutra recitation called Paritta (minghu/minghu jing, 明護/明護經), which is Pali for “protection”. The historical Buddha is known to have delivered paritta verses, including those for “protection from evil spirits, the assurance of good fortune, exorcism, curing serious illness, and even safe childbirth” (Robert & David, 2013, p. 630).

In both cases zhenyan/mantra and dharani refer to magical formulas of sorts and were no doubt chosen because they gave the ritual an heir of arcane authenticity. Additionally, I suggest the use of dharani may have also been chosen to denote a spell of protection, as in Sun wanted to protect the princes during the transformation of their bodies.

(Note 06/15/19: Feng Dajian of Nankai University notified me via Twitter that he disagrees with Anthony C. Yu’s 2012 revised translation (cited above) associating the “True Sayings” with the Buddhist Dharani. This is because he feels the ritual is overtly Daoist, noting that the religion also has its own True Sayings.)

Pratisara_Mantra1

Fig. 3 – A Dharani print from the late Tang Dynasty. Original from Wikicommons.

3. “…as he blew divine breaths into their visceral cavities. Their primordial spirits were thus restored to their original abodes.”

Journey to the West translator Anthony C. Yu (Wu & Yu, 2012) notes this section “is an abbreviated or paraphrastic account, in fact, of the neidan (internal or physiological alchemy process)” (p. 396, n. 8). Monkey already went through this process in chapter two when he practiced a series of breathing and energy circulation exercises that resulted in his immortality. Therefore, he uses his own hard-won “divine breath” or “immortal energy” (xianqi, 仙氣) to fortify the princes’ bodies by drastically speeding up the years-long process of internal cultivation to only a matter of hours or minutes. Monkey’s breath bolsters their own energy, helping them to achieve “primordial spirits” (yuanshen, 元神), a term commonly associated with Buddhahood or enlightenment. In Daoism, the term is synonymous with the attainment of immortality via the formation of a “Sacred Embryo” (shengtai, 聖胎) (fig. 4), which is forged from spiritual energies over long years of self-cultivation (Darga, 2008).

baby belly

Fig. 4 – The Sacred Embryo is sometimes depicted as a baby (or in this case a Buddha) on a practitioner’s stomach (larger version). Found on this blog.

4. “He next helped them to circulate and build up the fire phases…”

The fire phases (huohou, 火候) comprise the process of circulating spiritual energy throughout the body at prescribed times (fig. 5). Monica Esposito (2008) writes there are three phases in total, making up two distinct periods of activity and rest:

The first is a phase of “yangization” in which Yang augments and Yin decreases. This is described as a warlike or martial period, corresponding to the advancement of a light called Martial Fire (wuhuo 武火) or Yang Fire (yanghuo 陽火) that purifies by burning and eliminates defiled elements to release the Original Yang and increase it. At the cosmic level, the beginning of this phase is symbolized by the winter solstice (zi 子) and by the hexagram fu 復 ䷗ (Return, no. 24), which indicates the return of Yang. This is followed by a phase of balance, a time of rest called muyu ([沐浴] ablutions). At the cosmic level, this phase is symbolized by the spring and autumn equinoxes and by the hexagrams dazhuang 大壯 ䷡ (Great Strength, no. 34) and guan 觀 ䷓ (Contemplation, no. 20). The third stage is a phase of “yinization” in which Yin augments and Yang decreases. This period, called Civil Fire (wenhuo 文火) or Yin Fire (yinfu 陰符), corresponds to a decrease of the light. The adept achieves the alchemical work spontaneously and without any effort or voluntary intervention; water descends to moisten, fertilize, and temper fire. At the cosmic level, this phase is symbolized by the summer solstice (wu 午) and by the hexagram gou 姤 ䷫ (Encounter, no. 44) (p. 531).

Mastering the complicated chronological rhythm of this process is considered the best kept secret of internal alchemy (Esposito, 2008). Therefore, Monkey navigates this temporal maze for the princes, ensuring the spiritual energy that he has helped them cultivate ebbs and flows when prescribed. Once again we see Sun has sped up a lengthy process to only a few hours or minutes.

Fire phases

Fig. 5 – A chart showing the fire phases, the 12 phases of the moon, and the corresponding hexagrams (larger version). From Kim, 2008, p. 528.

II. Similarities to Comic Book Heroes

Despite the ritual’s relationship to internal cultivation and the attainment of immortality, the process only bestows the princes with new, adamantine bodies capable of superhuman strength. They in essence become the fantasy equivalent of today’s comic book superheroes. The princes gaining power from a divine being is similar to the concept of “Divine Empowerment” from DC Comics. A good example is Captain Marvel (fig. 6), a child-turned-adult who receives super strength (among other powers) from a battery of Western gods and sages through the medium of a divine wizard.

4139607-160

Fig. 6 – Billy Batson transforming into the superhero Captain Marvel, also known colloquially as Shazam (larger version). Originally found on this Comic Vine article.

III. Conclusion

This fascinating strength-bestowing ritual draws on multiple aspects of Buddho-Daoist ceremony and internal alchemy. First, Sun chooses a secluded room where he traces a diagram of the Big Dipper on the floor in order to consecrate the space. Second, he recites magical spells likely intended to protect the princes during their bodily transformation. Third, Monkey uses his own divine breath to ignite their spiritual energy, manually fanning the flames to higher levels of spiritual attainment. Finally, he controls the ebb and flow of the resulting energy throughout their bodies according to a prescribed chronological rhythm. In all, Sun shortens a years-long process to only a few hours or minutes.

Notes:

1) The original English translation says “a thousand arms”, but the Chinese says 萬千 (wanqian), which is a literary term for “tens of thousands” or “myriad”. Therefore, the translation has been corrected

2) Andersen (2008) notes the three paces are similar to those used by Vedic priests:

It would appear, in other words, that even in this early period the Paces of Yu constituted a close parallel to the three Strides Viṣṇu in early Vedic mythology, which are thought to have taken the god through the three levels of the cosmos (thereby establishing the universe), and which indeed, just like the Paces of Yu in Taoist ritual, are known to have been imitated by Vedic priests as they approached the altar—and in the same form as the Paces of Yu, that is, dragging one foot after the other (pp. 238-239).

Sources:

Andersen, P. (1989). The Practice of Bugang. Cahiers d’Extrême-Asie, 5. Numéro spécial Etudes taoïstes II / Special Issue on Taoist Studies II en l’honneur de Maxime Kaltenmark. pp. 15-53.

Andersen, P. (2008). Bugang In F. Pregadio (Ed.), The encyclopedia of Taoism: Volume 1 (pp. 237-240). London [u.a.: Routledge].

Darga, M. (2008). Shengtai In F. Pregadio (Ed.), The encyclopedia of Taoism: Volume 2 (pp. 883-884). London [u.a.: Routledge].

Esposito, M. (2008). Huohou: 2. Neidan In F. Pregadio (Ed.), The encyclopedia of Taoism: Volume 1 (pp. 530-532). London [u.a.: Routledge].

Kim, D. (2008). Houhou: 1. Waidan In F. Pregadio (Ed.), The encyclopedia of Taoism: Volume 1 (pp. 526-530). London [u.a.: Routledge].

Robert, E. B. J., & David, S. L. J. (2013). The Princeton Dictionary of Buddhism. Princeton University Press.

Wu, C., & Yu, A. C. (2012). The Journey to the West (Vol. 4). Chicago, Illinois : University of Chicago Press.