The
legend
A legend is a genre of folklore that consists of a narrative featuring human actions, believed or perceived to have taken place in human history. Narratives in this genre may demonstrate human values, and possess certain qualities that give the ...
of Trentren Vilu (Trengtreng or Tenten) and Caicai Vilu (Kaikai) is a
Mapuche
The Mapuche ( , ) also known as Araucanians are a group of Indigenous peoples of the Americas, Indigenous inhabitants of south-central Chile and southwestern Argentina, including parts of Patagonia. The collective term refers to a wide-ranging e ...
flood myth
A flood myth or a deluge myth is a myth in which a great flood, usually sent by a deity or deities, destroys civilization, often in an act of divine retribution. Parallels are often drawn between the flood waters of these Mythology, myths and the ...
that tells the story of a fierce battle between two mythical snakes, ''
Trentren Vilu'' (trentren="related with the earth", vilu="snake") and ''
Caicai Vilu'' (Caicai="related to water", vilu="snake"). It explains how the
Chilóe archipelago and mountains of southern
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...
came to have its unique geography.
Myth

According to the Mapuche, these two snakes were originally the children of the most powerful
pillan
The Pillan (of Mapudungun origin; , plural ) are powerful and respected male spirits in Mapuche mythology.
According to legend, the Pillan are good spirits, but they can also cause disasters, since they also punish (or they allow the ''wekufe'' ...
s, who were converted into their animal forms as punishment.
Peripillán's son was turned into a huge snake that would be Caicai and
Antu's son turned into a huge snake that would be Trentren. They were to be enemies, just as Antu and Peripillán were. Caicai was sent to live in the sea to help care for it with the
Ngen-ko (water spirits), and Trentren was sent to live on earth to help care for the earth with the other
Ngen
{{about, Mapuche mythology, other uses, NGEN (disambiguation)
In Mapuche mythology, Ngen or " Ngen-ko " are spirits of nature of the Mapuche beliefs. In Mapudungun, the word ''ngen'' means "owner".
Legend
The Ngen are those that manage, govern a ...
, and to help humanity; thus these two snakes were used as an instrument through which the will of the ancient Mapuche spirits was fulfilled.
It is said that after Caicai awoke from his years-long slumber, he became enraged because of the ungratefulness that men showed for every gift given to them by the sea, and desired to punish humanity and to incorporate all terrestrial life to his dominions. Caicai used his fish-shaped tail to hit the water, causing a great flood, since Caicai ordered the waters to flood the valleys and hills, and to bring all its inhabitants to the bottom of the sea.
Humans invoked the help of Trentren, who saw that both humans and animals were desperate. By order of her father, she was the one who had to provide them with wisdom and protection, so she decided to help humanity. She helped the people and the animals to escape by raising them on her back and taking them to the hills; and she transformed those who were trapped by the waters into birds, so they could escape by flying; those who were drowning into fish and marine mammals (one of them being the origin of the
cahuelche or talking
dolphin
A dolphin is an aquatic mammal in the cetacean clade Odontoceti (toothed whale). Dolphins belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontopori ...
), and those who had already drowned into
sumpall (Mapuche
mermen Mermen may refer to:
* The Mermen, a music group
*Merman
A merman (: mermen; also merlad or merboy in youth), the male counterpart of the mythical female mermaid, is a legendary creature which is human from the waist up and fish-like from the w ...
and
mermaid
In folklore, a mermaid is an aquatic creature with the head and upper body of a female human and the tail of a fish. Mermaids appear in the folklore of many cultures worldwide, including Europe, Latin America, Asia, and Africa.
Mermaids are ...
s). Those who were immobilized by the terror they felt, were transformed into
mankial (petrified). But as the sea continued to rise, Trentren had to order the hills to increase in height to counteract the power of Caicai. Angry, Caicai began to fight against Trentren in a titanic battle that lasted a long time, until both snakes were tired. Caicai was partially defeated as he was not able to flood all the land; however, the waters did not return completely to their old level, giving Chile its current geography.
According to
Chiloé tradition, Caicai was satisfied with the portion of land that he had managed to flood, and delegated his functions pertaining to the sea to the great
Millalobo
Millalobo (from the mapudungun ''milla'': "gold" and the Spanish ''lobo:'' wolf in allusion to the sea lion) is an important being in Chilote mythology. He is the most powerful being of the sea after Caicai and was chosen by Caicai to be his rep ...
.
According to Mapuche tradition, after the cataclysm, everyone continued their quiet life; until one day it was Trentren who was angered by the attitude that men had, and made all the volcanoes erupt and the population had to move to other safer places. From that moment on, Trentren continues to manifest itself through earthquakes and volcanic eruptions, while Caicai causes tidal waves and floods when he rolls over during his sleep.
Variations of the myth
Many variations of the myth exist which can be explained through the vast area the Mapuche culture covers and the fact that many of these stories have been carried through oral tradition.
Central Valley variation
Trentren is a large mountain in a range that runs between
Galvarino
Galvarino (died c. November 30, 1557) was a famous Mapuche warrior during majority of the early part of the Arauco War. He fought and was taken prisoner along with one hundred and fifty other Mapuche, in the Battle of Lagunillas against governor ...
and
Temuco
Temuco () is a List of cities in Chile, city and Communes of Chile, commune, capital (political), capital of the Cautín Province and of the Araucanía Region in southern Chile. The city is located south of Santiago de Chile, Santiago. The cit ...
. Caicai was a large snake/serpent with three arms, which were trees, the head of an ox, and a tail that was rooted in the ground. Caicai was also the chief to all the animals. High on Trentren there was a lake, which was the house of Caicai. People used to come and hit Caicai's tail with sticks. One day the people bothered Caicai too much, and Caicai led all the animals away. Caicai led them into the air, and no one knows where they went, but they are the spirit protectors of all living animals.
Tolten region
Trentren was a hall and also a good spirit which helped people. Caicai was a sea bird, an evil spirit, who used to harm people. One day Caicai decided to wipe out all the Mapuche and caused the sea to rise until the land was flooded. Many people managed to climb Trentren with their animals, and the wild animals followed. When Caicai called "cai, cai, cai" the sea rose until it nearly covered the top of Trentren and threatened everything on top. Upon seeing this, Trentren rose higher. This continued until Trentren reached its present height and all the sea water was used. Caicai was beaten and all the people and animals which climbed Trentren were safe. This is how Trentren saved the Mapuche and vanquished evil.
[
]
Similar myths
A variant of the myth tells that Caicai's anger against human beings began because a girl rejected her son, the Trauco
In the traditional Chilote mythology of Chiloé, Chile, the Trauco is a humanoid creature of small stature—similar to a dwarf or goblin—who lives deep in the forest. It has an ugly face and legs without feet.
Legend
The Trauco is a mythic ...
.
Some Huilliche
The Huilliche (), Huiliche or Huilliche-Mapuche are the southern partiality of the Mapuche macroethnic group in Chile and Argentina. Located in the Zona Sur, they inhabit both Futahuillimapu ("great land of the south") and, as the Cunco or Ve ...
communities of Chiloé say that the battle originated because a daughter of the Trauco rejected the pillán Peripillán, and for this reason her son decided to take revenge.
In Argentina
Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
there are other later versions of the myth, which change the original parents of both mythical snakes, indicating that they would be brothers and/or sons of the gods Nguenechèn and Kueyen
Kueyen or kuyen is the name given to the moon in Mapuche
The Mapuche ( , ) also known as Araucanians are a group of Indigenous peoples of the Americas, Indigenous inhabitants of south-central Chile and southwestern Argentina, including parts of ...
.
In popular culture
In the final shot in the trailer of ''Nahuel and the Magic Book
''Nahuel and the Magic Book'' () is a 2020 Traditional animation, animated fantasy-adventure coming-of-age film produced by Carburadores, co-produced by Chilean Punkrobot Studios and Brazilian Levante Films and directed by Germán Acuña Delgadil ...
'' by Latido Films, the Caicai raise to the ocean as Nahuel hugged an unconscious friend Fresia.
Geological and meteorological interpretations in recent studies
This myth has been geologically interpreted as a narrative linked to the volcanism of the Southern Volcanic Zone, emphasizing its relationship with eruptions, lahars, lake and river overflows in mountainous areas, as well as with tectonic uplifts and subsidence on the coast following major earthquakes. In Chile and Argentina, 36 place names are named after Trentren, Caicai, or variations of these names. Certain variations around Caicai also have an atmospheric component, particularly with tornadoes and waterspouts that have occurred in the central-southern region of Chile.
See also
*Chilote mythology
The Chilote mythology or Chilota mythology is formed by the myths, legends and beliefs of the people who live in the Chiloé Archipelago, in the south of Chile. This mythology reflects the importance of the sea in the life of Chilotes.
Chilote my ...
*Deluge myth
A flood myth or a deluge myth is a myth in which a great flood, usually sent by a deity or deities, destroys civilization, often in an act of divine retribution. Parallels are often drawn between the flood waters of these myths and the primeval ...
*Mapuche mythology
Mapuche religion is the traditional Native American religion of the Mapuche people. It is practiced primarily in south-central Chile and southwest Argentina. The tradition has no formal leadership or organizational structure and displays much in ...
References
*Tom D. Dillehay. Monuments, empires, and resistance: the Araucanian polity and ritual narratives. Cambridge studies in archaeology. Cambridge University Press, 2007. , {{ISBN, 978-0-521-87262-1
Mapuche mythology
Chilote legendary creatures
Mythological characters
Creation myths
Flood myths
Legendary serpents
Traditional narratives of indigenous peoples of the Americas