The Drummer in the Storm Clouds
Thunder rolls in from the mountains. In the old imagination, that sound is not weather. It is a muscular, wild-eyed figure crouched on a bank of black cloud, ringed by drums, striking them one after another with wooden mallets so that the sky itself booms. Each beat is a peal of thunder. His name is Raijin (雷神, pronounced rye-jin), and he is the Japanese god of thunder and lightning.
The name is plain and grand at once. The characters mean “thunder” and “god” or “spirit.” Put them together and you have simply “the thunder god.” Raijin is one of the most vivid figures in Japanese religion, a kami, one of the countless deities and spirits of Shinto, and he has been shaking the heavens in Japanese art for many centuries.
What Raijin Looks Like
You would never mistake Raijin for a gentle sky-father. He is drawn as a fearsome, demon-like being, and every detail says power and danger.
- The ring of drums. His unmistakable feature. A circle of taiko, Japanese drums, arcs around his body like a halo of thunderheads. He holds a mallet in each hand, and by striking them he makes the thunder.
- The wild body. His skin is often painted red, green, or blue-white. His hair flies out from his head as if charged with lightning. His face is contorted into a fierce grimace, sometimes with horns and clawed fingers and toes.
- The demon’s frame. His form borrows from the oni, the ogres of Japanese folklore, all knotted muscle and bared teeth. He is a force of nature given a body, and the body looks like the storm feels.
To stand before an image of Raijin is to understand at a glance why people once feared the thunder. He is chaos with a drumbeat.
The thunder is not something that happens to the sky. It is something Raijin does, on purpose, with a mallet in each hand.
The Two Who Rule the Weather
Raijin almost never appears alone. His constant companion is Fujin (風神), the god of wind, and the two are treated as a pair, the twin masters of the storm.
Where Raijin carries his ring of drums, Fujin carries a great billowing bag of wind slung over his shoulders, loosing gales as he runs across the heavens. Together they are the storm entire: Fujin the roaring wind, Raijin the crashing thunder and the lightning strike. Where one goes, the other follows, and between them they can whip the sky into fury or, when appeased, let it settle into calm.
This pairing is not just poetic. In old Japan the two gods were prayed to for good weather, for rain in a drought and for mercy in a typhoon. A farming country lives and dies by the sky, and Raijin held real power over whether the rice would grow or the fields would flood.
The Screen That Made Them Immortal
If one artwork fixed Raijin in the mind of Japan, it is a folding screen made in the early 1600s by the painter Tawaraya Sotatsu, known as Fujin Raijin-zu, “The Wind God and Thunder God.” It is one of the most famous paintings in all of Japanese art.
Against a shimmering field of gold leaf, the two gods lunge from opposite corners. Fujin, green-skinned, bounds in from the right with his wind bag flying. Raijin, white as a storm-lit cloud, leaps in from the left, surrounded by his ring of drums, mallets raised. The empty gold space between them crackles with tension, as if the whole sky is holding its breath before the crash.
The image was so powerful that later masters painted their own versions of it for generations. Today the pair still guards one of Japan’s most visited landmarks: the great Kaminarimon, the “Thunder Gate,” at Senso-ji temple in Tokyo. Its giant red lantern hangs between statues of Raijin and Fujin, and millions of visitors pass beneath the thunder god without always knowing his name.
The God Who Wanted Your Navel
Not every belief about Raijin is grand and terrifying. Some are almost affectionate, the kind of thing a grandparent tells a child.
The most charming is the old warning that Raijin loves to eat the navels, the belly buttons, of children. When the thunder rumbles, parents would tell little ones to cover their stomachs and hide their navels, lest the thunder god swoop down and snatch them. There is a practical seed in the superstition. Thunderstorms often bring a sudden chill, and covering the belly kept children warm and kept them from catching cold. Fear of Raijin, it turns out, was also a mother’s way of saying “put your shirt on.”
A Modern Vignette
A grandmother sits with her grandson on the veranda as a summer storm gathers over the hills. At the first deep roll of thunder the boy flinches, and she pulls his little shirt down over his belly and laughs. “Careful,” she says, “or Raijin will come for your bellybutton.” He does not really believe her, and she does not really believe it either, and yet the old god has just done what he has always done. He has turned a frightening sky into a story shared between two people who love each other.
That is how a thunder god survives into a century of weather apps and lightning rods. Not as terror, but as a thread of warmth passed down.
Raijin’s Drum Still Sounds
The link between Raijin and the drum runs deep, and it is more than a picture. The thunderous heartbeat of the taiko drum is woven through Japanese ritual and festival, and you can hear an echo of the god in every performance of taiko-drumming, where a wall of drums shakes the air the way thunder shakes the mountains. At shrines, the sacred dances of kagura call on the kami with music and movement, and the beat of the drum has always been a way of reaching toward the gods of the sky. Pass beneath a torii gate into a shrine during a storm and it is easy to feel why drum and thunder were long thought to be the same voice.
Raijin has also thundered his way into modern pop culture. He turns up as a boss or a summonable power in countless video games, and his most famous descendant may be Raiden, the thunder god of the Mortal Kombat fighting series, whose very name is another reading of the characters for “thunder and lightning.” Alongside crowd favorites like the winged tengu and the shapeshifting fox spirit kitsune, Raijin has become one of the Japanese deities the wider world knows on sight.
Strip away the game graphics and the temple gold, though, and the oldest truth remains. When the thunder rolls in over the hills, some part of us still listens for the drummer in the clouds.
FAQ
Who is Raijin in Japanese belief?
Raijin is the Shinto god of thunder and lightning, one of the many kami, or deities, of Japan. He is pictured as a fierce, demon-like figure surrounded by a ring of drums, which he strikes to create thunder. As a weather god he held real importance in a farming culture that depended on rain and feared the storm.
Why is Raijin surrounded by drums?
The ring of taiko drums is Raijin’s defining feature, and striking them with his two mallets is how he makes the thunder. The drum has long been linked to the gods and to reaching the heavens in Japanese ritual, which is why the god of thunder wields a whole circle of them. You can still hear that association in taiko-drumming and in shrine music today.
What is the relationship between Raijin and Fujin?
Fujin is the god of wind and Raijin’s constant companion, and the two are treated as a pair who together rule the storm. Fujin carries a great bag of wind while Raijin carries his drums of thunder, and they are almost always shown side by side. The famous folding screen Fujin Raijin-zu by Tawaraya Sotatsu captures them lunging toward each other across a field of gold.
Why did people say Raijin eats children’s navels?
It was an old folk warning: when thunder rumbled, parents told children to cover their bellies and hide their navels so Raijin would not snatch them. The superstition had a practical purpose, since storms brought a chill and covering the stomach kept children warm and healthy. It is one of the gentler, more affectionate beliefs surrounding an otherwise fearsome god.
Is Raiden from Mortal Kombat based on Raijin?
Yes, in spirit and in name. Raiden is another way of reading the same Japanese characters for thunder and lightning, and the Mortal Kombat thunder god draws directly on the tradition of Raijin. He is one of many modern game and film characters who carry the ancient thunder god into new stories.