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Early Medieval · Korea
Korea
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High on the slope of Mount Toham above the old Silla capital of Gyeongju, behind a wooden gate and a pane of protective glass, a granite Buddha sits in a round chamber built of carved stone blocks. He faces east, towards the sea, where the sun rises. Around him, carved in relief on the walls, stand bodhisattvas, disciples, guardian kings and a many-headed Avalokiteśvara. The grotto of Seokguram was begun in 751 by a minister of the kingdom of Unified Silla, and finished by the royal court in 774. It is one of the masterpieces of Buddhist art in East Asia. A few kilometres away, in villages and apartment blocks of modern Korea, women called mudang still perform the ecstatic rituals of a religion far older than the Buddha's arrival, dancing, singing, and speaking in the voices of the dead. Korean religion is layered like that: shamanism at the base, Buddhism and Confucianism laid over it, then Christianity and a string of new religions, and all of them still alive.
Foundations: the bear, the tiger and the son of heaven
The oldest Korean religious monuments are the dolmens: stone tables of the Bronze Age (roughly 1000–300 BCE), built by the tens of thousands across the peninsula, among the densest concentrations in the world. The sites of Gochang, Hwasun and Ganghwa, with more than a thousand dolmens between them, are a UNESCO World Heritage Site. They were tombs and perhaps markers of lineage and land; what rites were held at them is unknown.
Korea's national founding myth is written down much later, in the Samguk yusa ("Memorabilia of the Three Kingdoms"), compiled around 1281 by the Buddhist monk Iryeon. It tells how Hwanung, son of the heavenly lord Hwanin, descended to a sacred tree on a mountain with three thousand followers and the ministers of wind, rain and clouds. A bear and a tiger begged to become human; he gave them mugwort and garlic and told them to stay out of the sunlight for a hundred days. The tiger gave up; the bear became a woman, and her son by Hwanung was Dangun, who founded the first Korean kingdom, Gojoseon. Tradition dates the founding to 2333 BCE, and South Korea celebrates it as National Foundation Day on 3 October. The myth is a religious charter of descent from heaven; its date and the figure of Dangun are not historical in any documentary sense.
Musok: the religion of the mudang
Korea's indigenous religion, usually called musok or muism, centres on the mu or mudang, ritual specialists who are almost all women. Two main types are distinguished:
- Spirit-descended shamans (sinbyeong, kangshinmu), usually from the central and northern regions, who became shamans after a "spirit illness", a crisis of physical and mental suffering that is cured only by accepting initiation. They are possessed by gods and speak in their voices.
- Hereditary shamans (sesseummu), more common in the south, who inherit the role in their families and perform rites without possession.
The central ritual is the gut: an elaborate, sometimes all-night performance with drums, cymbals, costumes, food offerings and dance, in which the mudang invites gods, ancestors and spirits, lets them speak, entertains them and sends them away satisfied. There are gut to heal the sick, to bless a household or a business, to protect a fishing village, and above all to guide the dead: the ssitgimgut of the southwest "cleanses" a soul, and the jinogwigut leads it to the other world, where in the chanted epic the abandoned princess Bari became the first shaman by bringing back the water of life for her parents. The gods of musok are many: the mountain gods (sansin), shown as an old man with a tiger; house gods; generals and kings of Korean history; the smallpox spirit; and the restless dead. Villages set up carved wooden guardian posts (jangseung) and bird-topped poles (sotdae) at their entrances, and kept shrines to the local tutelary god (seonangdang).
Musok has often been despised. Confucian officials of the Joseon dynasty treated it as vulgar superstition; the Japanese colonial government (1910–1945) harassed and regulated shamans as backward and unhygienic; and in the 1970s the South Korean government's New Village Movement (Saemaul) campaigned against "superstition", and many village shrines, posts and poles were destroyed. Yet mudang continued to be consulted in crises, often by the same people who looked down on them, and since the 1970s several gut have been protected as national intangible heritage. The Jeju Chilmeoridang Yeongdeunggut, a rite for the wind goddess and the sea, was inscribed on UNESCO's list of the Intangible Cultural Heritage of Humanity in 2009.
Buddhism comes to the Three Kingdoms
Buddhism reached Korea from China in the fourth century, during the Three Kingdoms period. The official date for Goguryeo in the north is 372, when a monk named Sundo arrived from the Former Qin court with scriptures and images; Baekje in the southwest received it in 384. The southeastern kingdom of Silla resisted. The Samguk yusa tells how the courtier Ichadon, a Buddhist, arranged his own execution in 527 to overcome the aristocracy's opposition: when he was beheaded, the tradition says, his blood flowed white as milk, the sky darkened and flowers rained down, and the king was able to adopt Buddhism.
After Silla unified most of the peninsula in the 660s, Buddhism became its state religion and a great scholarly tradition. Wŏnhyo (617–686), who, a famous story says, gave up a journey to China after drinking water in the night from what turned out to be a skull and realizing that "all is mind", wrote commentaries on scores of sutras and sought to reconcile the schools. Ŭisang (625–702) brought the Hwaeom (Chinese Huayan) teaching of the interpenetration of all things, and summarized it in a poem of 210 characters laid out as a winding seal. Temples such as Bulguksa ("Temple of the Buddha Land"), built in its present form from 751, were designed as images of the Buddha's pure land on earth.
Under the Goryeo dynasty (918–1392) Buddhism was at its height of wealth and influence. When the Mongols invaded, the court had the whole Buddhist canon carved on woodblocks as an act of merit to repel them. The Tripitaka Koreana, 81,258 double-sided blocks carved between 1237 and 1248 after an earlier set was burned, is kept at Haeinsa temple in storage halls so well ventilated that the blocks have survived nearly eight centuries; both are inscribed by UNESCO. The monk Jinul (1158–1210) shaped the Seon (Zen) tradition that dominates Korean Buddhism today, teaching "sudden awakening, gradual cultivation"; the largest order, the Jogye, traces itself to him.
Confucian Korea
The Joseon dynasty (1392–1910) made Neo-Confucianism, in the form taught by the Chinese philosopher Zhu Xi, the ideology of the state. Buddhism was pushed out of the cities and its monasteries reduced; monks were barred from the capital for long periods. What replaced it at the centre of religious life was ritual toward ancestors. The jesa rites, with food offerings before ancestral tablets on death anniversaries and holidays, were performed in every yangban household and spread through all classes, and the great royal ancestral shrine in Seoul, Jongmyo, still holds its annual rite with court music. Korean scholars such as Yi Hwang (Toegye) and Yi I (Yulgok) debated the relation of principle (li) and material force (gi) in human nature with great subtlety. In 1443 King Sejong had a new alphabet devised, Hangul, promulgated in 1446 as Hunminjeongeum, "the correct sounds for instructing the people"; its designers explained its vowels in cosmological terms.
Christianity and the new religions
Catholicism came to Korea not by missionaries but through books. Korean scholars read Chinese Catholic works in the eighteenth century, and in 1784 Yi Seung-hun, baptized in Beijing, returned to found a community run entirely by lay people. The state saw it as subversive, above all when converts refused ancestral rites: in 1791 a Catholic who had burned his mother's ancestral tablets was executed. Persecutions in 1801, 1839, 1846 and 1866 killed thousands. In 1984 Pope John Paul II canonized 103 Korean martyrs in Seoul. Protestant missionaries arrived from the 1880s and grew into one of the most dynamic churches in the world.
Korea also produced its own religions. In 1860 a scholar named Choe Je-u, after an experience of the Lord of Heaven, founded Donghak, "Eastern Learning", to answer the "Western Learning" of Catholicism. It taught that the Lord of Heaven dwells in every person; Choe was executed in 1864, and in 1894 his followers led a great peasant uprising. Its successor is Cheondogyo, "the Way of Heaven". Other new religions include Won Buddhism (1916), Jeungsan movements, and the Unification Church founded by Sun Myung Moon in 1954 (see ch35).
Religion in Korea today
South Korea is one of the least and most religious societies in the world at once. In the 2015 census, 56% of the population said they had no religion; 20% were Protestant, 16% Buddhist and 8% Catholic. Megachurches in Seoul hold hundreds of thousands of members, and many temples are active; yet most people follow no organized religion, while many still hold ancestral rites and consult fortune-tellers and shamans at moments of crisis. North Korea officially guarantees freedom of religion but in practice severely restricts it; its state ideology gives the ruling Kim family a quasi-religious status.
The believer's lens
For a mudang and her clients, the world is full of spirits: gods of the mountains and the house, ancestors, and the dead who have died unjustly or too young and cannot rest. Misfortune often has a spiritual cause, and the gut restores the relationships between the living and the dead. For a Korean Buddhist, the goal is awakening to one's own Buddha-nature, and the Seon tradition teaches that it is already present, to be realized through meditation and practice. For a Confucian, a good life is lived in right relationships, above all with parents and ancestors, whose remembrance through ritual is a moral duty. Korean Christians see their church's history as a story of faith sustained by martyrs and of the gospel spreading through the Korean people themselves. Many Koreans draw on more than one of these at once, and see no contradiction in it.
The skeptical lens
The historian notes, first, that the founding myth was written down more than three and a half thousand years after its supposed date, by a Buddhist monk in the thirteenth century, and that Dangun as a historical person and 2333 BCE as a date are not supported by evidence. The story has been used as a national symbol, especially under colonial rule and in the modern nationalism of both Koreas, and North Korea announced in 1993 that it had found Dangun's tomb and bones; that claim is not accepted by independent scholars.
Second, the idea that musok is a pure survival of an ancient Korean religion is too simple. Musok as we know it has absorbed Buddhist, Daoist and Confucian elements, and it has been shaped by centuries of stigma and by modern folklorists and heritage policy. The miracles told of Ichadon's martyrdom are hagiography.
Third, the psychologies of spirit illness and possession are real experiences, studied by anthropologists and psychiatrists. Whether they involve spirits is a religious question the evidence cannot settle; many studies describe spirit illness as a culturally shaped response to stress, especially among women in a patriarchal society.
Symbology and sacred encoding
- The Taegeuk. The red and blue circle of the South Korean flag, the taegeuk ("supreme ultimate"), is the yin–yang of Neo-Confucian cosmology, surrounded by four of the eight trigrams of the Book of Changes: heaven, earth, water and fire. A national flag made from a diagram of the cosmos.
- Hangul's cosmology. The Hunminjeongeum Haerye (1446), the commentary to the new alphabet, explains its three basic vowel strokes as images of heaven (a dot), earth (a horizontal line) and humanity (a vertical line), and relates the consonants to the organs of speech and the five phases. It is documented, not a later legend: an alphabet designed with a theory of the universe.
- Ŭisang's seal. The Diagram of the Dharma Realm, a poem of 210 Chinese characters arranged in a single path that winds through a square and returns to its beginning, encodes the Hwaeom teaching that one contains all and all contains one.
- The mountain god and the tiger. In almost every Korean Buddhist temple a small shrine (sansingak) holds a painting of the mountain god, an old man seated with a tiger. It is a visible sign of the absorption of the old religion into Buddhism.
- The colours of the gut. Mudang change costume for each god: the red robes of generals, the white of the Buddhist-derived spirits, the colours of the five directions (obangsaek), with fans, bells and knives as attributes. Multi-coloured streamers and paper flowers make the ritual space.
- Guardian posts and bird poles. Jangseung, carved posts with fierce faces, often inscribed "Great General Under Heaven" and "Female General Under Earth", and sotdae, poles topped with wooden birds, marked village boundaries and linked earth and sky.
- The ancestral tablet. The wooden tablet bearing the name of the dead, before which jesa offerings are laid in a prescribed order, is the Confucian sign of the continuing presence of the ancestors.
- Seokguram's geometry. Scholars have proposed that the grotto was laid out on simple proportional units, and its Buddha is often said to face the sunrise at the winter solstice; both the alignment and the design principles are debated.
Connections
Korean Buddhism stands between the Mahayana of China (ch20) and Zen & Pure Land in Japan (ch54), to which Korean monks brought much of it; Baekje monks carried Buddhism to Japan, shaping early Shinto as well (ch25). Korean Neo-Confucianism develops the tradition of Confucianism & Daoism in ch12. Musok belongs with other shamanic traditions of northern Asia treated in Tibetan & Vajrayana Buddhism (ch53), and its possession rites with those of the African Diaspora Religions (ch40) and Pentecostalism (ch64), which has had great success in Korea. Korea's Catholic martyrs and Protestant boom are part of Pentecostalism & Global Christianity (ch64), and its new religions sit with the New Religious Movements (ch35) and Bahá'í & New Faiths (ch65). The founding myth of a son of heaven is a case for Sacred Kingship (ch49), and the princess Bari's descent for the dead a case for Journeys to the Underworld (ch47).
Well-supported by evidence
The dolmens of the Korean Bronze Age; the Samguk yusa (c. 1281) and its Dangun myth as a text; musok, the mudang, their types and the gut, documented by ethnography and still practised; the suppression of musok under Joseon, colonial rule and the New Village Movement, and its later protection; the arrival of Buddhism in 372 and 384 and its adoption in Silla; Seokguram and Bulguksa; Wŏnhyo, Ŭisang and Jinul; the Tripitaka Koreana (81,258 blocks, 1237–1248); Joseon Neo-Confucianism and the ancestral rites; Hangul (1443/1446) and the cosmological explanation in its commentary; the lay founding of Korean Catholicism and its persecutions; Donghak and its successors; and the 2015 census figures.
Not supported (as established fact)
Dangun as a historical founder and 2333 BCE as a historical date; North Korea's "tomb of Dangun"; the miracles of Ichadon's martyrdom; the idea that modern musok is an unchanged survival of prehistoric religion. The reality of the spirits in musok, and the divine claims of the other traditions, are matters of faith, reported here as belief.
Genuinely open
What rites were held at the dolmens; the origins and early history of Korean shamanism and its relation to Siberian shamanism; the design principles of Seokguram; how to count religious identity in a society where many people practise several traditions or none formally; and the future of religion in South Korea, where the share with no religion has risen sharply.
Sources
- Korean mythology and the Dangun myth; the Samguk yusa — Iryŏn, Samguk Yusa: Legends and History of the Three Kingdoms of Ancient Korea, trans. Ha Tae-hung and G. K. Mintz (Seoul: Yonsei University Press, 1972). https://ci.nii.ac.jp/ncid/BA01173052 ; Hyung Il Pai, Constructing "Korean" Origins: A Critical Review of Archaeology, Historiography, and Racial Myth in Korean State-Formation Theories (Harvard University Asia Center, 2000), on the uses of the Dangun myth in modern nationalism. https://korea.fas.harvard.edu/publications/constructing-%E2%80%9Ckorean%E2%80%9D-origins-critical-review-archaeology-historiography
- North Korea's 1993 "tomb of Dangun" — Jeongbin Lee and Inwook Kim, "Creating P'yŏngyang's Legitimacy: North Korea's Excavation and Reconstruction of the Tomb of King Tongmyŏng," International Journal of Korean History 29, no. 2 (2024): 87–132, on the October 1993 announcement, Kim Il-sung's direction of the excavation and its treatment as a politically orchestrated project with a predetermined conclusion. https://ijkh.khistory.org/journal/view.php?number=599
- Musok, the mudang and the gut — L. Kendall, Shamans, Housewives, and Other Restless Spirits: Women in Korean Ritual Life (University of Hawaiʻi Press, 1985). https://uhpress.hawaii.edu/title/shamans-housewives-and-other-restless-spirits-women-in-korean-ritual-life/ ; L. Kendall, Shamans, Nostalgias, and the IMF: South Korean Popular Religion in Motion (University of Hawaiʻi Press, 2009). https://muse.jhu.edu/book/4049 ; Britannica, "Mudang." https://www.britannica.com/topic/mudang
- Suppression of shamanism (colonial rule; Saemaul) — L. Kendall, Shamans, Nostalgias, and the IMF: South Korean Popular Religion in Motion (University of Hawaiʻi Press, 2009). https://muse.jhu.edu/book/4049 ; Muhlenberg, "Shamanism in Colonial Korea, 1910–1945." https://open.muhlenberg.pub/koreanhistory/chapter/shamanism-in-colonial-korea/
- Jeju Chilmeoridang Yeongdeunggut (UNESCO, 2009) — UNESCO Intangible Cultural Heritage. https://ich.unesco.org/en/RL/jeju-chilmeoridang-yeongdeunggut-00187
- The mountain god in Buddhist temples — D. A. Mason, Spirit of the Mountains: Korea's San-shin and Traditions of Mountain-Worship (Seoul: Hollym, 1999). https://koreanstudies.com/ks/ksr/ksr00-10.htm (review) ; Korea Times, "Sanshin-gak: Mountain-spirit venerated in Korean temples." https://www.koreatimes.co.kr/lifestyle/others/20100812/sanshin-gak-mountain-spirit-venerated-in-korean-temples
- Buddhism's arrival (372, 384, 527) and Ichadon — Iryŏn, Samguk Yusa: Legends and History of the Three Kingdoms of Ancient Korea, trans. Ha Tae-hung and G. K. Mintz (Seoul: Yonsei University Press, 1972). https://ci.nii.ac.jp/ncid/BA01173052 (Ichadon's martyrdom, Book 3) ; R. E. Buswell Jr. (ed.), Religions of Korea in Practice (Princeton University Press, 2007). https://www.oeaw.ac.at/resources/Record/9780691188157/TOC ; World History Encyclopedia, "Buddhism in Ancient Korea." https://www.worldhistory.org/article/973/buddhism-in-ancient-korea/ ; A. C. Muller, "Korean Buddhism: A Short Overview." http://www.acmuller.net/kor-bud/koreanbuddhism-overview.html
- Wŏnhyo, Ŭisang, Jinul and Seon — R. E. Buswell Jr. and D. S. Lopez Jr., The Princeton Dictionary of Buddhism (Princeton University Press, 2014), entries on Wŏnhyo, Ŭisang and his Pŏpkye to (Diagram of the Dharma Realm), and Chinul. https://www.oeaw.ac.at/resources/Record/9781400848058 ; R. E. Buswell Jr. (trans.), The Korean Approach to Zen: The Collected Works of Chinul (University of Hawaiʻi Press, 1983). https://www.degruyterbrill.com/document/doi/10.1515/9780824895433/html
- Seokguram and Bulguksa — UNESCO, "Seokguram Grotto and Bulguksa Temple." https://whc.unesco.org/en/list/736/ ; R. E. Buswell Jr. and D. S. Lopez Jr., The Princeton Dictionary of Buddhism (Princeton University Press, 2014), entries on Pulguksa and Sŏkkuram. https://www.oeaw.ac.at/resources/Record/9781400848058
- The Tripitaka Koreana and Haeinsa — UNESCO Memory of the World, "Printing Woodblocks of the Tripitaka Koreana and Miscellaneous Buddhist Scriptures" (inscribed 2007). https://es.unesco.org/silkroad/node/471 ; UNESCO, "Haeinsa Temple Janggyeong Panjeon." https://whc.unesco.org/en/list/737 ; Smarthistory, "Haeinsa Temple Janggyeong Panjeon, and the Tripitaka Koreana woodblocks." https://smarthistory.org/haeinsa-temple-janggyeong-panjeon-and-the-tripitaka-koreana-woodblocks/
- Dolmens — UNESCO, "Gochang, Hwasun and Ganghwa Dolmen Sites." https://whc.unesco.org/en/list/977/ ; S. M. Nelson, The Archaeology of Korea (Cambridge University Press, 1993). https://library.upol.cz/arl-upol/en/detail-upol_us_cat-0267768-The-archaeology-of-Korea/
- Hangul and the Hunminjeongeum Haerye — UNESCO Memory of the World, "Hunminjeongum Manuscript" (inscribed 1997). https://en.unesco.org/silkroad/silk-road-themes/documentary-heritage/hunminjeongum-manuscript ; G. K. Ledyard, The Korean Language Reform of 1446: The Origin, Background, and Early History of the Korean Alphabet (Seoul: Sin'gu Munhwasa, 1998; Columbia Ph.D. thesis, 1966) ; National Hangeul Museum. https://www.hangeul.go.kr/lang/en/html/education/Hangeul.do
- The Taegeuk and the flag — Office for Government Policy Coordination, Republic of Korea, "The National Flag – Taegeukgi" (the yin–yang circle and the four trigrams). https://www.opm.go.kr/en ; Ministry of the Interior and Safety, "The National Flag – Taegeukgi." https://www.mois.go.kr/eng/sub/a03/nationalSymbol/screen.do
- Korean Catholicism and the martyrs — D. Baker with F. Rausch, Catholics and Anti-Catholicism in Chosŏn Korea (University of Hawaiʻi Press, 2017). https://ubcpress.ca/catholics-and-anti-catholicism-in-choson-korea ; John Paul II, Homily at the Canonization of the Korean Martyrs, Seoul, 6 May 1984. https://www.vatican.va/content/john-paul-ii/en/homilies/1984/documents/hf_jp-ii_hom_19840506_martiri-coreani.html ; T. S. Lee, Born Again: Evangelicalism in Korea (University of Hawaiʻi Press, 2010). https://oeaw.ac.at/resources/Record/9780824837600
- Donghak and Cheondogyo — Britannica, "Choe Je-u." https://www.britannica.com/biography/Choe-Je-u ; C. F. Young, Eastern Learning and the Heavenly Way: The Tonghak and Ch'ŏndogyo Movements and the Twilight of Korean Independence (University of Hawaiʻi Press, 2014). https://www.degruyterbrill.com/document/doi/10.1515/9780824840167/html
- Religion in South Korea today (2015 census) — Korea Times, "More Koreans now non-believers, census shows" (10 January 2017; reporting Statistics Korea's 2015 Population and Housing Census). https://www.koreatimes.co.kr/amp/lifestyle/others/20170110/more-koreans-now-non-believers-census-shows ; U.S. Department of State, 2023 Report on International Religious Freedom: South Korea. https://www.state.gov/reports/2023-report-on-international-religious-freedom/south-korea
Other traditions of this age
The recitation and the oneness of God: from the cave of Hira and the command to 'Recite!' to a faith that spanned Spain to the Indus in a century. The…
Patristic ChristianityThe age of the Fathers: how a persecuted movement of house-churches became, over five centuries, a church with a canon, a creed, and an emperor. From…
Norse PaganismThe gods before the cross, reconstructed from a ship full of a dead woman's belongings, poems Christians wrote down two centuries too late, and the…
TantraThe esoteric revolution that reshaped Hinduism and Buddhism alike — a ritual technology of mantra, diagram, and the subtle body that made the human…
ShintoJapan's way of the kami — a faith with no founder and, for most of its history, no separate name. From the shrine at Ise rebuilt whole every twenty…
Tibetan & Vajrayana BuddhismThe Diamond Vehicle — the tantric third turning of Buddhism, promising Buddhahood in a single lifetime. The sand mandala built and swept away…
Zen & Pure Land BuddhismThe hardest road and the easiest — East Asian Buddhism’s two great opposite answers to whether liberation is achieved or received. Zen (Chan)…
Eastern Orthodoxy & ByzantiumHeaven on earth — the Christianity of the Byzantine empire, which argues first from beauty. The seven Ecumenical Councils (Nicaea to Nicaea II) that…
Shi'ismThe ‘party of Ali’: the succession dispute after Muhammad and the words at Ghadir Khumm; Husayn’s martyrdom at Karbala in 680 and the mourning of…
Comparative themes
Why nearly every people who kept records remembers the world ending in water — the Mesopotamian lineage from Ziusudra to Utnapishtim, its relationship…
Creation & the First OrderHow the world began, told side by side: the watery chaos of Tiamat, Nun, and tehom; the combat myth (chaoskampf) in which Marduk, Baal, and Zeus win…
Journeys to the UnderworldThe descent to the land of the dead — one of the oldest and most widespread of all sacred stories — and what a civilization reveals when it weighs its…
The Great GoddessThe divine feminine — and the modern myth built on top of it. The goddesses we can actually document (Inanna/Ishtar, Isis, Asherah and the ‘Yahweh and…
Sacred KingshipThe ruler as a holy figure between heaven and earth — god, god’s son, god’s chosen, or god’s hostage. Frazer’s priest of Nemi and the dying-king…
The End of DaysHow the world ends — and the deep divide between the line and the wheel. The Qumran War Scroll and the apocalyptic mind; the Persian blueprint…
Sacrifice & the ScapegoatThe gift of blood — one of the most universal and most troubling of religious acts. What sacrifice was (korban, ‘drawing near’; yajna into fire…
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