Sang Sinxay (, also known as Sinxay or Sinsai) is a Lao epic poem written by Pang Kham. It tells the story of the hero Sinxay (ສິນໄຊ) who goes on a quest to rescue his aunt Soumountha (ສູມຸນທາ) who was abducted by the demon Nyak Koumphan (ຍັກກູມພັນ). The poem is believed to have been written sometime between the mid-16th and the end of the 17th century in the Lao kingdom of Lan Xang. Sang Sinxay is considered one of the three masterpieces of Lao literature. The poem is popular in Laos and in the Isan region of Thailand, where its scenes are also depicted on numerous temples.

Historical and literary context

Sang Sinxay was written between the reigns of Xetthathirat and Surinyavongsa, thus between the mid-16th and the end of the 17th century. This period was considered to be a golden age of cultural development in Lan Xang, and the arts flourished in Vientiane, the Lao capital. Many of the great works of Lao literature were composed during the reign of Surinyavongsa. With his death in 1695, the Kingdom of Lan Xang began a long period of political turmoil.

Martin Stuart-Fox, in the Historical Dictionary of Laos, states that epic poems appeared in Lao literature in the late 16th century or in the beginning of the 17th century, and that Sang Sinxay is the "finest and best known" epic poem composed in this period. The names of the authors of these epic poems are unknown, except for Pang Kham, author of Sang Sinxay. Regarding Pang Kham, there is no other information than the name. Many of these epic poems were written in the style of jataka tales, with Sinxay, the hero of the poem, considered a Bodhisatta (in Pali), or Boddhisatva (in Sanskrit).

In his book, Theatre in Southeast Asia, James Brandon underlines the presence of numerous similarities between Sang Sinxay and the Ramayana, known as Phra Lak Phra Lam in Laos, without establishing whether one of the poems influenced the other, or if they were both inspired by a same source.

Palm leaf manuscripts and publishing history

Up to the early 20th century, most works of literature in Laos were preserved through continuous copying in the form of palm-leaf manuscripts, traditionally stored in wooden caskets and kept in the libraries of Buddhist monasteries. This was the method of transmission also for Sang Sinxay. The Digital Library of Lao Manuscripts hosts 94 digitized palm leaf manuscripts whose title includes the word Sinsai (spelling used by the Digital Library of Lao Manuscripts).

One of the Sinxay palm-leaf manuscripts was discovered in the Thai National Library in Bangkok by Mahasila Viravong, a Buddhist and Pali scholar who worked there. Viravong had fled Laos when, after the end of World War II, the French tried to regain control of Laos. He transliterated the palm-leaf manuscript into Lao, and after returning to Laos he published the first edition of Sang Sinxay in 1949. The second edition was published in 1951. In 1953, Mahasila claimed that Sang Sinxay was one of three masterpieces of Lao literature, along with Vetsantrasadok and Thao Hung. He published his final edition of Sang Sinxay in hard cover format in 1969, combining the first two editions into one volume. The poem was reprinted a total of seven times between 1949 and 1983. In the 1980s, Mahasila began translating Sang Sinxay into modern Lao, hoping that a new prose edition would help future generations understand and enjoy the poem. He died before finishing the translation, which was completed by Outhine Bounyavong, his son-in-law. The new edition, titled Sinxay, was first published in 1991 by Dokked Printing Ltd, which is owned and directed by Douang Deuane Bounyavong, daughter of Mahasila Viravong.

In 2009, to commemorate the 450th Anniversary of the founding of Vientiane, Dokked Printing Ltd. published the first commemorative volume of the original Sang Sinxay, the first publication in the publisher’s "Vientiane Heritage Series". The second commemorative volume was printed in 2011. Both volumes contain explanatory notes and definitions to help the reader understand some of the older Lao words and phrases.

Plot summary Phanya Kousarath is the king of Muang Pengchan, a powerful kingdom. He and his wife, Nang Chanta, are unable to have children. The king’s sister, Soumountha, is abducted by a demon called Nyak Koumphan, ruler of a far-away kingdom of ogres. Phanya Kousarath, after becoming a Buddhist monk, embarks on a journey to find his sister. An abbot at a temple tells him that only someone with a lineage to Buddha or Indra would be able to defeat Nyak Koumphan. After being reinstated as king, Phanya Kousarath meets and marries the seven sisters he met on the monks’ morning alms. He asks them to pray to the gods for pregnancy, in order to give birth to an extraordinary child with the power to rescue Soumountha. Nang Chanta and Nang Lun pray together to Indra, who hears their prayers and chooses three of his sons to come down to earth.

Nang Lun gives birth to two twins: Sangthong (ສັງທອງ), who has the body of a conch shell, and Sinxay (“he who will triumph by his virtues”), who holds a sword, bow and arrows. Nang Chanta gives birth to Siho (ສີໂຫ), a boy with the body of a lion and the head of an elephant, while the other six sisters give birth to normal looking human sons. Lun and Chanta and their sons are banished from the palace because of the babies’ strange appearance. They are left in the forest, where Indra sees their hardships and builds a small palace for them. When Nang Lun returns Sinxay's weapons to him, the young man demonstrates his power by shooting two arrows. The first lands in the kingdom of the khut (garuda in Thai), while the second one lands in the kingdom of the nagas. Both kings lead millions of their followers to Sinxay’s palace, pledging their service to him.

Once the six brothers have become young men, Phanya Kousarath sends them on a quest to find the power needed to rescue Soumountha. After getting lost in the forest, they are led by Indra to Sinxay’s palace. Through deception, they convince Sinxay to make all the animals in the forest appear at the palace in Muang Pengchan. They use this to convince their father that they have gained the magical powers they were seeking. The king sends them on a quest to rescue his sister. They end up at Sinxay’s palace again, and trick him into believing he is the one chosen by the king for the quest. The six brothers, Sinxay, Sangthong and Siho leave together, but upon meeting a giant snake the six flee in terror while Siho and Sinxay kill the snake. When they arrive at a river, the six brothers refuse to proceed further. Sinxay leaves Siho to protect them, and sets off to rescue Soumountha along with Sangthong.

In his journey, Sinxay meets many obstacles, some of which set on his course by Nyak Koumphan. He also encounters the fabled Nariphon tree, jealously guarded by Phanyathone. After enjoying the nariphon and having to fight the phanyathone, Sinxay comes upon Ton Kalapheuk, the mythical Wishing Tree, covered in jewels and hand woven silk textiles. He chooses one textile to keep, along with a set of royal clothes to wear when meeting Soumountha. He also meets a group of kinnari, and falls in love with one of them, Kiengkham. He leaves her after seven days with the promise of returning to marry her. Finally Sinxay and Sangthong reach Nyak Koumphan’s palace, where they meet their aunt Soumountha, only to discover she has fallen in love with Koumphan and does not want to go back to Muang Pengchan. Sinxay shoots an arrow, whose power makes Koumphan fall into a deep sleep. After leading Soumountha to a cave created by Indra, Sinxay and Sangthong go back to Koumphan’s palace, and try to kill him while he sleeps. Every time they slice off their head, though, seven more nyaks appear. Sinxay then shoots an arrow that burns many of the nyaks and makes the remaining ones flee into the forest.

After retrieving Soumountha and finding a palace in the forest created for them by Indra, the two brothers are surrounded by millions of nyaks. After two great battles Sinxay manages to kill Koumphan. Soumountha then asks Sinxay to rescue her daughter, Sidachan, who is now the wife of Nak Valoonarat, king of the nagas and guardian of underworld treasures. When they reach his palace, Sinxay challenges him to a game of chess. He bets his weapons, while the king bets his kingdom. After three wins, Sinxay proposes to take Sidachan instead of the kingdom, but Nak Valoonarat refuses, prompting a battle against millions of nagas. Sinxay and Sangthong are helped in the battle by the khut, and they finally prevail, capturing Nak Valoonarat, who agrees to hand over Sidachan.

Sinxay, Sangthong, Soumountha and Sidachan are rejoined with Siho and the six brothers, still by the river. The six brothers start planning to take credit for the rescue. While bathing at the top of the waterfall, they push Sinxay over the edge, believing he is dead. Soumountha leaves her silk scarf, her ornamented hairpin and her hair extension by the river, praying they would be returned to the palace as proof of Sinxay’s survival. Indra descends from the heavens and pours sacred water on Sinxay, bringing him back to life and leading him to the palace in the forest, to his mother Nang Lun and his aunt Nang Chanta.

Back in Muang Pengchan, a celebration is held in honor of the six brothers, who would soon be kings. Soon, though, Soumountha and Sidachan tell Phanya Kousarath how the events unfolded. He receives proof when a mariner tells him of the three objects he found by the river. The six brothers and their mothers are thrown into jail, and the king embarks on a journey to locate Sinxay. They find him at his palace, but Sinxay refuses to return to Muang Pengchan to become king. Soumountha convinces Sinxay with a speech, explaining that it is in the best interest of the kingdom. He returns to Muang Pengchang, where he becomes king, marries Kiengkham, and rules virtuously.

Alternate ending The original Sang Sinxay edited by Mahasila Viravong ends with Sinxay’s marriage with Kiengkham. This is the most commonly known version in Laos. In Isan an alternate ending is best known, and is also represented on murals in temples of the region.

After Sinxay becomes king, Vedsuvan, the nyak leader, notices he has not heard from Nyak Koumphan in over seven years. He sends two of his nobles down to earth, where they discover that Koumphan has been killed by Sinxay. Vedsuvan descends to earth, and pours sacred water on Koumphan’s bones, which were laid in a stupa after his funeral and cremation, bringing him back to life. Koumphan is still angry, and wants to return Soumountha to his kingdom. Defying Vedsuvan, he becomes a queen fly, and flies at night into the palace in Muang Pengchan, abducting Soumountha and Sinxay. Returning to his kingdom he places Sinxay in a wooden cage, planning to boil him alive in an iron cauldron.

Sangthong and Siho, upon discovering the abduction, fly to the kingdom of the nyaks with Sinxay’s weapons. Transforming themselves, they sneak their way through the thousands of nyaks gathered around Sinxay’s cage. Siho slips Sinxay’s bow and arrows and sword through the bars, while Sangthong, who has become a frog, knocks over the iron cauldron, scalding the nearby nyaks. Sinxay frees himself using his sword, and he is challenged to a battle by a furious Koumphan. Indra, from Tavatimsa Heaven, sees the confrontation that is about to take place, and intervenes, calming down Koumphan.