What Does "Onnen" Mean? The Word for a Grudge, and How Japan Learned to Calm It

"Steeped in onnen." "Dispelling one's onnen." In stories and everyday life we brush against the word onnen (怨念). Heavy and dark in its ring, what does it actually point to? Here we trace the meaning and origin of onnen, how it differs from urami, and how the people of Japan faced and calmed it.

What onnen means

Onnen names a resentment congealed deep in the heart. 怨 means grudge, enmity, a foe; 念 means a brooding thought, or mind. Together they express "a resentful thought that lingers strongly, never dispelled."

Not a passing anger, but something that congeals in the depths of the heart over time — that is the weight of onnen. It can point in particular to the strong grudge a person carried into death unresolved, and in stories it has been told in connection with onryo, vengeful spirits.

How it differs from urami

A similar word is urami, but the two are not the same. Urami is broad: it covers not only anger and hatred at another's wrongdoing but also lingering regret, disappointment, and grief.

Onnen, by contrast, points to resentment that is especially strong and long-lodged among that. It grows from events not easily dispelled — an unreasonable wrong, an unjust death, a stolen honor — and lingers long in the memory of a person or a community. As the character 念 shows, its brooding, fixed quality is what sets it apart from a passing emotion.

Goryo belief — a culture of calming onnen

From the Heian period Japan held a "goryo belief": that the spirit of one who died bearing a strong grudge could bring calamity, and that such a spirit should be enshrined with reverence and calmed. The first recorded goryo-e rite is said to have been held in 863 (Jogan 5) at Shinsen-en garden in Kyoto, where figures who met violent deaths, such as Prince Sawara (Emperor Sudo), were enshrined.

Rather than merely fearing the grudge and keeping it at bay, people sought to soothe its power by enshrining it warmly — at times honoring it as a deity. Here lies a distinctive idea: calm an onryo, and it turns instead into a "goryo" that protects the people. The whole picture of goryo belief is also explained in what goryo belief is.

Tenjin and the three great vengeful spirits

The very symbol of goryo belief is Tenjin, the beloved god of learning. Its identity is well known: the enshrinement of Sugawara no Michizane, who lost a political struggle and met an unjust death in Dazaifu. A man who left the world bearing a grudge became, through being calmed, a deity who protects the people — a classic example.

Michizane is at times counted, together with Emperor Sutoku and Taira no Masakado, among the "three great vengeful spirits of Japan." Each is an example of a figure said to have left a strong grudge, enshrined with reverence and awe. What comes into view here is a distinctively Japanese wisdom: not "sealing away" onnen, but "calming and accepting" it.

Onnen is something to be dispelled

What comes into view through this culture is that onnen has been treated not as something to keep carrying, but as something to "dispel" and "calm." Enshrining, holding memorial rites, putting it into words as an offering — many practices were devised to turn resentment outward and let it go, rather than storing it within.

Resentment, the more you hold it in, congeals and grows heavy in the depths of the heart. That is precisely why people built into daily life the means to bring it into the open and release it in a fitting form. The idea of entrusting a strong grudge to something and setting it outside has been handed down, East and West, as tales of revenge and of laying spirits to rest.

Writing, and letting go

The culture of calming and dispelling onnen reaches us today in a changed form. Rather than storing an undispellable grudge in the depths of the heart, you can put it into words for a while and set it outside. In psychology, too, writing out painful feelings is thought to help you gain distance from them.

Noroi Nikki is a place for that. A grudge or bitterness you can tell no one, you can write out as words of a "curse," seen by no one. When you put into words and offer up what had congealed deep inside, you can feel a little of the weight lift from your shoulders. Setting the heavy thing you carry outside, in a safe form, without harming anyone — writing and letting go may be a quiet, present-day version of the culture that once calmed onnen.

Related reading: What Does "Jubaku" Mean? The Word for a Curse That Binds