Oni

Beyond the mountains, something dwells — the creature that has always been whispered about is the oni. The image of a great hulking figure crowned with one or two horns, wrapped in a loincloth of tiger skin, clutching a gnarled iron club, lives on still in painted scrolls and festival rites. Its flesh comes in five colors: blue, red, yellow, green, and black. Each corresponds to one of the five elements, and to one of the five afflictions that nest within the human heart — rage, greed, agitation, torpor, and doubt. The oni, it may be, is nothing more than the murk inside a person, spilling outward into form.

The root of the character 鬼 lies in "the soul of the dead." A starving soul is called a *gaki* — a hungry ghost; a soul that wails and shrieks is recorded as *kikoku*, the weeping of demons. The Japanese word *oni* too has crawled up from those same depths of original meaning. Ancestral spirit, earth spirit, the wild god of the mountain peaks, the Buddhist yaksha and rakshasa, the human soul twisted beyond recognition by undying resentment — what we call the oni cannot be contained within any single image.

In hell, oni serve as jailers under the command of Emma, the King of the Dead, judging and tormenting the souls of the damned. In the living world, they appear as the villains of hero-tales — like Shuten-dōji of Mount Ōe, cut down by the righteous blade. Punished again and again across generations of folklore, the idea of the oni as evil was pressed deep into the hearts of common people. And yet that is not the whole of what the oni is.

In a mountain village in Tottori, oni are enshrined as powerful protectors of the community. On Mount Iwaki in Aomori, an oni that had performed acts of virtue was welcomed into a shrine and venerated as a god. Even as beans are hurled to drive oni away at the Setsubun rite, a quieter faith persists in the shadows of the countryside — one that holds the oni as a purger of evil spirits, a bringer of good fortune.

On the nō stage, the oni appears as a vengeful spirit, its obsession hardened and fixed behind the mask's hollow eyes. Folklorists have attempted to classify oni into five distinct types, but the more precisely they define, the more the image wavers, its outline dissolving into fog. Perhaps the oni is not a terrifying other at all — perhaps it is the oldest name ever given to something human beings have simply refused to look at.

Even now, somewhere deep in the mountain valleys, a legend survives: oni once lived here. Lived — spoken in the past tense. But whether it truly is the past, no one who has gone to check has ever come back to say.