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Mononoke

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Mononoke are spirits found in Japanese folk religion and classical literature.

Hokusai Aoinoue
Hokusai Aoinoue

These entities were believed to possess individuals and cause suffering. They could also cause disease or even death. The term is sometimes used to describe yōkai or henge, which are "changed beings." Within this tradition, mononoke are categorized into several distinct types. Onryō are described as vengeful spirits. Shiryō are spirits of the dead. Ikiryō are live spirits that come from living people. These distinctions help explain how different spirits might interact with the world of the living.

In the Heian period, people used specific spiritual methods to manage these spirits. Because medical knowledge was not fully developed, illness was often linked to the supernatural. Monks and shugensha would perform incantations and prayers to address these issues. One common method involved a person called a yorimashi. A yorimashi was usually a servant or an apprentice. During an exorcism, practitioners would temporarily move the mononoke into the yorimashi. This process was intended to heal the original person suffering from the spirit. Detailed accounts of these rituals appear in works like The Pillow Book and The Diary of Lady Murasaki.

The history of the term can be traced back to early Japanese records. The first appearance of the word in literature is in the Nihon Kōki. In the year 830, during the Tenchō 7 period, the Nihon Kiryaku recorded a specific event. It stated that five monks were invited to recite the Diamond Sutra to address a matter. In the old language, the word "mono" referred to spirits, oni, or the Ara-mitama. The Taihō Code used the word "ke" to refer to diseases. This led to the phrase "mono no ke," meaning a disease caused by a spirit.

Totei bukkairoku Ending
Totei bukkairoku Ending

Different historical figures and events shaped how people viewed these spirits. At first, the connection between spirits and curses was not universally accepted. Emperor Saga once stated that attributing all mononoke to curses was baseless. However, this view changed as onmyōdō, a traditional way of thinking, spread through aristocratic society. The author Harusumi no Yoshitada strongly adopted the concept of mononoke in the Shoku Nihon Kōki. This influence helped cement the idea that vengeful spirits caused societal problems. As onmyōdō became more common, the belief in the power of spirits grew deeper.

Specific historical deaths and epidemics reinforced the fear of vengeful spirits. For example, the deaths of emperors and the spread of epidemics during the Enryaku years were linked to the curse of Prince Sawara. The Nihonkoku Genpō Zen'aku Ryōiki tells of how the grudge of Prince Nagaya led to many deaths. Similarly, the Shoku Nihongi mentions the vengeful spirit of Fujiwara no Hirotsugu. A major turning point occurred after the death of Sugawara no Michizane in 903. Following his death, many members of the imperial and noble families died. People feared these deaths were caused by a curse from Michizane.

Hokusai Aoinoue
Hokusai Aoinoue

Literature provides famous examples of how these spirits were depicted. In the 9th volume of the Genji Monogatari, titled "Aoi," an ikiryō is a central element. The character Lady Rokujō is depicted as an ikiryō who possesses Aoi no Ue.

Hokusai Aoinoue
Hokusai Aoinoue

Other historical publications like Ōkagami and Masukagami also contain statements regarding mononoke. These stories show how deeply the concept of spirit possession was woven into the culture. They illustrate the psychological weight that the idea of mononoke held for the people of that era.

Social and environmental factors also contributed to the rise of these beliefs. During the era of the Fujiwara sekke, noble families lived in a very closed, imperial society. This isolated lifestyle may have fostered a fear of the unknown. Nobles also had delicate personalities and feared the grudges of those they had defeated. Over time, the concept expanded to cover almost all forms of suffering. Epidemic diseases, individual deaths, and physical pain were all seen as mononoke. Eventually, the terms for the spirits themselves, like ikiryō and shiryō, became synonymous with the concept of mononoke.

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