Tengu

In the second month of 637 a great star crossed the sky above the Japanese court, travelling east to west, and behind it came a rumbling that everyone took for thunder. The Nihon Shoki records the unease. It also records the correction. A priest named Min, who had spent years studying in Tang China and had come home with a Chinese explanation for most things, told the court that this was no falling star and no thunder either. That sound was a tengu barking.

The name he used was written with two characters meaning heavenly dog, borrowed from the tiangou, a Chinese celestial hound whose descent was read as an omen of war and ruin. The scribes wrote the characters down and then glossed them in Japanese as amatsukitsune, heavenly fox, which suggests nobody in the room was entirely certain what had just gone over their heads. M. W. de Visser, who produced the first sustained study of the creature in 1908, suspected the Japanese tengu was a graft of two Chinese spirits at once, the celestial dog and the fox.

The dog did not last. Within a few centuries the tengu had become a bird and has stayed one ever since. The older form gives it the head of a crow or a black kite: a beak the colour of horn, feathers with a dull oiled shine, hands ending in scaled talons that can still close around a sword hilt. The later form turns the face human and turns it red, thickening the beak into a great jutting nose that hangs over the mouth like a proclamation. Both wear a wardrobe borrowed from the living. From the thirteenth century the tengu was dressed as a yamabushi, one of the mountain ascetics of Shugendō, complete with the small black tokin cap knotted at the brow, a sash hung with woollen pom-poms, and tall single-toothed clogs that no ordinary person could cross a slope in. In one hand it carries a fan of overlapping feathers, the hauchiwa, which raises wind.

That costume is the joke and the accusation together. Buddhist doctrine of the medieval period held that the tengu were not merely creatures of the woods but a destination, a samsaric realm called tengudō into which the dead were sorted. The people who ended up there were clergy. A monk who had mastered the sutras and then begun quietly to enjoy his own mastery, who could not release his grip on rank or property or reputation, found the Pure Land closed to him and woke among the pines with feathers coming through his skin. Learning was no protection. Learning was the trap, since only a man with something to be proud of can be ruined by pride.

Picture one of them at work on a cold ridge before dawn, motionless in a cedar, the wet bark smell rising, watching the lantern of a temple far below and waiting for a particular monk to come up the path alone. Nothing dramatic happens for hours. Waiting is most of the job.

The late thirteenth-century picture scrolls known as the Tengu zōshi, or Shichi tengu-e, take the idea and sharpen it into a weapon. Across their panels the celebrated monks of the great Nara and Kyoto temples are drawn with beaks, and so are the leaders of the newer Pure Land and Zen movements, all of them strutting and preening in their robes. Haruko Wakabayashi has shown how neatly this served the old establishment: an entire doctrine of evil, deployed to make rivals look ridiculous. Few traditions have found a more elegant way to call someone a fraud.

The tales collected in the Konjaku monogatarishū around 1120 are older and less political and considerably funnier. Tengu there are nuisances with ambitions, appearing as priests and nuns, scattering false miracles, snatching monks out of their cells and depositing them on distant mountainsides. In one story a buddha appears among the branches of a persimmon tree, shining and letting flowers fall, and the crowd below duly kneels. A minister with a suspicious temperament refuses to kneel and simply stares at the thing for an hour without blinking. The light thins. The flowers stop. The buddha turns into a kestrel and drops out of the tree with its wings broken. The trick only works on people who are not paying attention.

Not every tengu was a fallen abbot. The Hōgen monogatari tells of Emperor Sutoku, forced from the throne, beaten in the rebellion of 1156 and exiled to Sanuki, who bit through his tongue and wrote out a curse in his own blood, swearing to become the great demon of Japan. He let his hair and his nails grow and, in the chronicle’s account, became a tengu while still alive. On Mount Kurama, meanwhile, the tengu king Sōjōbō took an interest in a boy called Ushiwakamaru. According to the Gikeiki he taught the child swordsmanship, tactics and magic among the roots and rockfalls of the mountain, and the child grew into Minamoto no Yoshitsune, the most gifted battlefield commander of his age. The greatest teacher in the Japanese imagination is a bird that hates monks.

What a tengu can do follows from what it is. It flies. It raises storms with a sweep of the fan and can strip a hillside of leaves without leaving its perch. It wears other faces convincingly, since it was human once and remembers the trick. It can lift a grown man off a temple veranda and set him down a hundred miles away, dazed and unable to say how he came there, and it can put visions in front of a crowd that will hold as long as the crowd wants to believe them. In the mountains it has the ground itself on its side, every path and false path, every drop of scree.

Its limits are the same material as its powers. A tengu is made of pride, and pride cannot survive being looked at steadily, which is why the illusions collapse under a sceptic’s attention and the false buddha ends in the dirt with a broken wing. Recited sutras and genuine humility unmake them, being precisely the things they failed at. They cannot leave tengudō by force, only by the slow route that put them there in reverse. And their true shape always surfaces in the end, beak first. In time some mountains made peace with them and enshrined their tengu as guardians of the peak, which is either a conversion or a very long negotiation.

Frequently Asked Questions

What is a tengu?

A tengu is a mountain spirit of Japanese folklore, usually depicted as part bird and part man. Early forms have the head, wings and talons of a crow or black kite, while later ones have a red human face with a long jutting nose. From the thirteenth century they were commonly dressed as yamabushi, the mountain ascetics of Shugendō.

Why is the tengu called a “heavenly dog” when it looks like a bird?

The name comes from the Chinese tiangou, a celestial dog whose fall was read as an omen of disaster. The Nihon Shoki uses those characters for a meteor seen in 637, though it glosses them in Japanese as amatsukitsune, “heavenly fox”. The canine sense never took hold in Japan, and within a few centuries the tengu had settled into bird form.

Are tengu good or evil?

Both, depending on the era and the mountain. Medieval Buddhist writing treats tengu as enemies of the faith and as a punitive rebirth for proud clergy, while later tradition honours certain tengu as protective deities of particular peaks. The same creature that abducts monks also trained Japan’s most celebrated general.

Who was Sōjōbō?

Sōjōbō is the tengu king of Mount Kurama. The Gikeiki credits him with teaching swordsmanship, tactics and magic to the boy Ushiwakamaru, who grew up to become the warrior Minamoto no Yoshitsune. He is the best known individual tengu in Japanese legend.

How do you defeat a tengu?

Tengu illusions fail under steady, sceptical attention, as in the Konjaku monogatarishū tale where a minister stares at a false buddha until it turns back into a kestrel and falls from the tree. Recited sutras and sincere humility also undo them, since a tengu is a being defined by the pride it could not surrender.

Related Entries

Karasu-tengu, Daitengu, Konoha-tengu, Guhin, Tengu-no-kakuremino, Oni, Kappa, Kitsune, Tanuki, Amanojaku, Shuten-dōji, Nurarihyon, Kamaitachi, Karura, Tiangou