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


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


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).


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

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

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.

Bin Steel: The Magic Metal of Journey to the West

Last updated: 02/06/21

Different mythologies and fictional universes have their own magical metals. For example, Marvel’s Asgardians have Uru and the elves of Middle-earth have Mithril. The great Chinese classic Journey to the West (Xiyouji, 西遊記, 1592 CE) hosts a long list of magical weapons, armor, and objects made from all kinds of metal (steel, iron, brass, gold, silver, etc.). A specific type is called Bin iron or Bin steel (bin tie, 鑌鐵) and it is mentioned several times in the narrative.

I. Mentions in the novel

Chapter 19

When Zhu Bajie first faces Sun Wukong in combat, he recites a poem praising the celestial origin of his weapon (fig. 1).

This is divine ice steel greatly refined,
Polished so highly that it glows and shines.
Laozi wielded the large hammer and tong;
Mars himself added charcoals piece by piece.
Five Kings of Five Quarters applied their schemes;
Twelve Gods of Time expended all their skills.
They made nine prongs like dangling teeth of jade,
And brass rings were cast with dropping gold leaves.
[…] (Wu & Yu, 2012, vol. 1, p. 382)

The “divine ice steel” (shen bing tie, 神冰鐵) is likely an error for “divine Bin steel” (shen bin tie, 神鑌鐵) as bing (冰) and bin (鑌) sound similar. This may also have something to do with the snowflake-like grain pattern of Bin steel (see sections one and two below). Take note that the metal is associated with Laozi and his furnace. We will see this association again.

Zhu Bajie In-Flames Action Figure- small

Fig. 1 – A modern action figure of Zhu Bajie with his battle rake (larger version).

Chapter 34

On the cusp of his battle with the Monkey King, the demon King Silverhorn (Yinjiao wang, 銀角王) is described as wearing polished armor made from the material.

He wears a phoenix helmet white than snow
And armor made of bright [Bin] steel. [1]
The belt on his waist is dragon’s tendon.
Plum-flower shaped gaiters top his goat-skin boots.
He seems the living Lord of Libation Stream;
He looks no different from Mighty Spirit.
He holds in his hands the sword of seven stars,
Stern and imposing in a towering rage (Wu & Yu, 2012, vol. 1, p. 127).

The monster is later revealed to be one of two young attendants of Laozi’s furnace sent by heaven to test the resolve of the pilgrims (Wu & Yu, 2012, vol. 2, p. 145).

Chapter 75

The Monkey King recites a poem about his divine staff (fig. 2) prior to battling a lion demon.

The rod of [Bin] steel nine cyclic times refined
Was forged in the stove by Laozi himself.
King Yu took it, named it “Treasure Divine,”
To fix the Eight Rivers and Four Seas’ depth.
In it were spread out tracks of planets and stars,
Its two ends were clamped in pieces of gold.
Its dense patterns would frighten gods and ghosts;
On it dragon and phoenix scripts were drawn.
Its name was one Rod of Numinous Yang,
Stored deep in the sea, hardly seen by men.
Well-formed and transformed it wanted to fly,
Emitting bright strands of five-colored most.
[…] (Wu & Yu, 2012, vol. 3, p. 375)

Here again we see Laozi is associated with the material.

Sun Wukong In-Flames action figure - small

Fig. 2 – A modern action figure of Sun Wukong with his magic staff (larger version).

II. The metal of heroes

I want to reiterate the fact that Zhu Bajie and Sun Wukong, two of Tripitaka’s three main disciples and bodyguards, have weapons made from Bin steel (Sha Wujing’s staff is made from a heavenly tree). Each is the product of Laozi refining Bin steel in his magic furnace and smelting the polearms by hand. Just like dwarves imbued Thor’s uru-metal hammer with magical abilities, so too did the high god of Daoism for Zhu and Sun’s weapons. Each has supernatural durability and the power of transformation. In fact, the Monkey King’s staff is one of the strongest weapons in the entire novel, making its association with Bin steel very important. After all, a great hero requires a great weapon.

Another example of a hero wielding a Bin steel weapon is Wu Song (武松) from the classic Chinese novel the Water Margin (Shuihu zhuan, 水滸傳, c. 1400). The former constable-turned-outlaw comes into possession of a pair of Buddhist sabers (fig. 3) made from “snowflake [pattern] Bin steel” (xuehua bintie jiedao, 雪花鑌鐵戒刀) and housed in a sharkskin sheath. [2] They are described as being made from the “finest steel, and obviously hadn’t been made in a day” (Shi, Luo, & Shapiro, 2015, p. 317). In addition, the blades are said to “often groan in the night” (Shi, Luo, & Shapiro, 2015, p. 350), suggesting a magical, sentient longing for combat. Wu later sates this desire by using the sabers in a prolonged skirmish with an evil Daoist priest, eventually beheading the brigand with a single strike (Shi, Luo, & Shapiro, 2015, pp. 352-353).

Wu Song with knives

Fig. 3 – A modern drawing of Wu Song with his Buddhist sabers (larger version).

III. Real world history

Wagner (2008) suggests the name Bin (鑌) is a transliteration of a foreign term, possibly the Sanskrit word Piṇḍa, meaning “steel” or “lump” (p. 270). The material is mentioned in Chinese records of the 6th and 7th-centuries as being imported from Persia (Bosi, 波斯) and Jaguda (Cao, 漕, modern day Ghazni) in Afghanistan. Mentions of the metal strangely disappear for centuries, only to reappear in early 10th-century records. This is possibly due to the disruption of Persian trade wrought by the Islamic conquest of Persia and the subsequent rise of Muslim trade with the east. Bin steel is believed to have originally been transported in a raw “lump” state prior to smelting in China. But the secret of its manufacture eventually reached the Middle Kingdom, for a 12th-century report shows the metal was produced in Inner Mongolia. The early Yuan government is known in 1275 to have established the “Office for Bin iron” (Bintie ju, 鑌鐵局), which possibly catered to elite blacksmiths (Wagner, 2008, pp. 268-272).

13th-century Persian Damascus blades (detail) - small

Fig. 4 – Persian-made Damascus steel blades of the 13th-century (larger version). Take note of the intricate grain pattern. Bin steel was known to have various patterns (see below).

The best description of the material comes from Cao Zhao’s (曹昭) The Essential Criteria of Antiquities (Ge gu yao lun, 格古要論, 1368), an early guide for connoisseurs.

Bin iron: It is produced by the Western Barbarians. Some [types] have a spiral self-patterning, while others have a sesame-seed or snowflake patterning. When a knife or sword is wiped clean and treated with ‘gold thread’ alum, [the pattern] appears. Its value is greater than silver.

An ancient saying holds that “knowing the strength of iron is like knowing gold” [i.e., the ability to judge the properties of steel is as valuable as the ability to assay the purity of gold]. Forgeries have a black patterning. One should examine [a steel object] very carefully.

There are three rules for knives. The first is that in the blade there should be perfect control of fire, metal, and water [i.e., the blade should be correctly quench-hardened and tempered]. The second is that the haft should be of xichi wood from the Western Barbarians, and the third is that the sheath should be of Tatar birchbark.

I once had a pair of scissors of bin iron, of exquisite workmanship. It had a raised gilt pattern on the inside, and on the outside a silver-inlaid inscription in Islamic characters (Wagner, 2008, p. 271).

So we see Bin steel is comparable to Damascus steel (fig. 4), as both require quench-hardening and produce a number of intricate grain patterns visible after an acid treatment. One such pattern is the snowflake pattern associated with Wu Song’s sabers (and possibly Zhu Bajie’s rake). Most importantly, the metal was considered an exceptionally fine steel. One general is described as boasting that rebels would “have to nick (chi, 齒) his sword of bin iron” if they wished to rise up (Wagner, 2008, p. 269). [3] I take this statement to be symbolic of his unbreakable resolve. At the same time, it shows Bin steel was considered exceptionally durable.

Highly durable Bin steel weapons could have seemed like magic in comparison to those made from lesser quality metal. Therefore, it’s interesting that Journey to the West presents the metal being smelted by a god in his magic furnace. It seems only natural that a magical forge would produce the finest steel. In fact, after the 10th-century, the very name Bin steel came to be used as a term for any type of exquisite steel (Wagner, 2008, p. 271). So the author-compiler of Journey to the West may have been using it in that sense instead of referring to imported Persian steel.

Update: 02/06/21

I have written an article that discusses the magic powers of the staff. These include the ability to shrink and grow, control the ocean, astral project and entangle with Monkey’s spirit, multiply endlessly, pick locks, and transform into various objects. It also has sentience to a certain degree.


1) Anthony Yu’s original translation says “…bright Persian steel.” The historical origin is discussed in the second section of the article.

2) While the Water Margin presents them as sabers, Buddhist knives (jiedao, 戒刀, lit: “precept knife”) were historically small, unadorned, curved, finger-length blades used for cutting robes, trimming fingernails, opening wounds, or slicing food (Yifa, 2009, p. 250, n. 37).

3) Wagner (2008) states the story is listed as coming from the 9th-century but the housing source is from the 11th-century (p. 269, n. 103). Therefore, it likely originates after the reappearance of Bin steel in Chinese records during the early 10th-century.


Shi, N., Luo, G., & Shapiro, S. (2015). Outlaws of the marsh. California: CreateSpace Independent Publishing Platform.

Wagner, D. (2008). Science and civilisation in China: volume 5, chemistry and chemical technology, part 11, ferrous metallurgy. Cambridge: Cambridge Univ. Press.

Wu, C., & Yu, A. C. (2012). The journey to the west: vol. 1-4. Chicago, Ill: University of Chicago Press.

Yifa. (2009). The Origins of Buddhist monastic codes in China: An annotated translation and study of the Chanyuan Qinggui. Honolulu: University of Hawai’i press.