''Mononoke'' (物の怪) are vengeful spirits (
onryō
In Japanese traditional beliefs and literature, are a type of ghost () believed to be capable of causing harm in the world of the living, injuring or killing enemies, or even causing natural disasters to exact vengeance to "redress" the wrong ...
), dead spirits (
shiryō), live spirits (
ikiryō
, also known as , , or , is a disembodied spirit or ghost in Japanese popular belief and fiction that leaves the body of a living person and subsequently haunts other people or places, sometimes across great distances. The term(s) are used in c ...
), or spirits in Japanese classical literature and folk religion that were said to do things like possess individuals and make them suffer, cause disease, or even cause death.
It is also a word sometimes used to refer to ''
yōkai
are a class of supernatural entities and spirits in Japanese folklore. The word is composed of the kanji for "attractive; calamity" and "apparition; mystery; suspicious." are also referred to as , or . Despite often being translated as su ...
'' or ''henge'' ("changed beings").
Summary

''Mononoke'' can be often seen in literature of the
Heian period
The is the last division of classical Japanese history, running from 794 to 1185. It followed the Nara period, beginning when the 50th emperor, Emperor Kanmu, moved the capital of Japan to Heian-kyō (modern Kyoto). means "peace" in Japanese ...
.
As a famous example, in the 9th volume of the ''
Genji Monogatari'', "Aoi" is the ikiryō of
Lady Rokujo, who possessed
Aoi no Ue.
Other than that, there are also statements about ''mononoke'' in publications like ''
Ōkagami ''Ōkagami'' () is a Japanese historical tale written in around 1119 by an unknown author. It covers the period 850 to 1025, the golden days of the Fujiwara family's rule. It is said to be a successor (世継物語, ''yotsugi monogatari'') with the ...
'' and ''
Masukagami
is a Japanese historical tale written in the early Muromachi period believed to be between 1368 and 1376. The author is not known but is believed to be Nijō Yoshimoto.Nussbaum, Louis-Frédéric ''et al.'' (2005). "''Masu-kagami''" i ''Japan Enc ...
''.
In those times, when medical knowledge has not been fully developed, people like monks and
shugensha would perform incantations and prayers against diseases caused by ''mononoke'', and by temporarily moving the ''mononoke'' into a different person called the "
yorimashi" (usually servants, apprentices, etc.) they would perform exorcism on the ''mononoke'' to heal the illness. Statements on this practice can be found in detail in works like ''
The Pillow Book
is a book of observations and musings recorded by Sei Shōnagon during her time as court lady to Empress Consort Teishi during the 990s and early 1000s in Heian-period Japan. The book was completed in the year 1002.
The work is a collection ...
'' and ''
The Diary of Lady Murasaki''.
Also, according to the ''
Shoku Nihon Kōki'', it told of once when a monk chanted a sutra to 60 people within the imperial residence.
History
Japanese ''mononoke'' come from China's 物怪, and there are statements on them in ancient Chinese literature like
Records of the Grand Historian
''Records of the Grand Historian'', also known by its Chinese name ''Shiji'', is a monumental history of China that is the first of China's 24 dynastic histories. The ''Records'' was written in the early 1st century by the ancient Chinese his ...
and 原鬼, there are statements on this 物怪. In the latter one, there is the statement, "those with neither voice nor shape are 鬼神 (wrathful gods). Those who cannot have shape or voice, and also cannot be without shape or voice, are 物怪," and thus the 物怪 of China at that time were considered a type of
yōkai
are a class of supernatural entities and spirits in Japanese folklore. The word is composed of the kanji for "attractive; calamity" and "apparition; mystery; suspicious." are also referred to as , or . Despite often being translated as su ...
that cannot be seen or heard, and were thought to be natural phenomena that people did not understand with the knowledge of those times.

The first appearance of the term in Japanese literature is seen to be in the
Nihon Kōki, and according to a quotation of this book from the
Nihon Kiryaku of the same time period, in the article of Uruu 12th month of the year
Tenchō
was a after '' Kōnin'' and before '' Jōwa.'' This period spanned the years from January 824 through January 834. The reigning emperors were and .
Change of era
* February 6, 824 : The new era name was created to mark an event or series o ...
7 (830), there is the statement: "Five monks were invited to recite the Diamond Sutra. With some difficulty, the
Jingi-kan
The , also known as the Department of Shinto Affairs, Department of Rites, Department of Worship, as well as Council of Divinities, was a Japanese Imperial bureaucracy established in the 8th century, as part of the ''ritsuryō'' reforms. It was fi ...
relieved it. It was the work of a 物恠," and there are also statements about ''mononoke'' in the articles in the 8th month Jinshin of the same year, and of year 10 in the 5th month.
In the old language of those times, the word "mono" was used to refer to
oni
An is a kind of '' yōkai'', demon, orc, ogre, or troll in Japanese folklore. Oni are mostly known for their fierce and evil nature manifested in their propensity for murder and cannibalism. Notwithstanding their evil reputation, oni posses ...
, spirits, or
Ara-mitama among other things,
or things that were not felt to be clearly real, and in the
Taihō Code
The was an administrative reorganisation enacted in 703 in Japan, at the end of the Asuka period. It was historically one of the . It was compiled at the direction of Prince Osakabe, Fujiwara no Fuhito and Awata no Mahito. Nussbaum, Louis ...
, epidemic diseases were written about as "toki no ke" (時気), using the word "ke" to refer to "diseases", and so it is seen that a "mono no ke" (a "ke" of a "mono") was used to refer to diseases caused by these "mono".
"The Pillow Book" as well, there are names for diseases such as "mune no ke" ("ke" of the chest), "ashi no ke" ("ke" of the feet), and "mono no ke" ("ke" of "mono").
As groundwork for how ''mononoke'' were thought of as, in Japan from the beginning of the Heian Period, various societal malaises and illnesses were thought to be due to curses ("tatari") of vengeful spirits (onryō). Starting with how the succession of emperors dying to diseases and the spread of epidemics in the
Enryaku years was said to be the curse of
Prince Sawara
(750? – November 8, 785) was the fifth son of Prince Shirakabe (later Emperor Kōnin), by Takano no Niigasa.
Biography
In 781 he was named heir-presumptive after his elder brother succeeded the abdicated Emperor Kōnin as the Emperor Kanmu. ...
, there is a tale in the
Nihonkoku Genpō Zen'aku Ryōiki in which the grudge of
Prince Nagaya
Nagaya ( ') (684 – 20 March 729) was a politician of the Nara period and an imperial prince of Japan, a son of Prince Takechi (grandson of Emperor Tenmu).
His father was Prince Takechi and his mother Princess Minabe (a daughter of Emperor T ...
is said to have led many people to their deaths. In the
Shoku Nihongi
The is an imperially-commissioned Japanese history text. Completed in 797, it is the second of the '' Six National Histories'', coming directly after the '' Nihon Shoki'' and followed by '' Nihon Kōki''. Fujiwara no Tsugutada and Sugano no Ma ...
, there is a statement about
Fujiwara no Hirotsugu's vengeful spirit (onryō). However, this kind of thought still wasn't very influential at that time, and even
Emperor Saga
was the 52nd emperor of Japan, Emperor Saga, Saganoyamanoe Imperial Mausoleum, Imperial Household Agency according to the traditional order of succession. Saga's reign spanned the years from 809 through 823.
Traditional narrative
Saga was the ...
stated in a caution, "in this society, some would attribute any and all ''mononoke'' to a spirit's curse. These are very baseless assertions,"
thus strongly denying the relation between ''mononoke'' and vengeful spirits.
Afterwards, in the
Shoku Nihon Kōki, the author,
Harusumi no Yoshitada, reflecting knowledge of
onmyōdō
is a system of natural science, astronomy, almanac, divination and magic that developed independently in Japan based on the Chinese philosophies of yin and yang and wuxing (five elements). The philosophy of yin and yang and wu xing was introdu ...
, strongly adopted the concept of ''mononoke''.
In the
Jōwa years, the aristocratic society received strong influence from onmyōdō, and the spread of onmyōdō planted in many people the general concept of vengeful spirits. Just at that time, after
Sugawara no Michizane
was a scholar, poet, and politician of the Heian Period of Japan. He is regarded as an excellent poet, particularly in Kanshi poetry, and is today revered in Shinto as the god of learning, . In the poem anthology ''Hyakunin Isshu'', he is known a ...
died in
Engi
, also known as Entertainment Graphic Innovation, or Studio ENGI, is a Japanese animation studio founded by Kadokawa, Sammy Corporation, and Ultra Super Pictures, and is a subsidiary of Kadokawa Corporation.
History
On April 4, 2018, Kadoka ...
3 (903), the deaths one after another that followed of members of the imperial and noble families, as well as the spread of epidemic diseases, were feared as the work of a curse of Michizane, and thus the belief that ''mononoke'' were caused by vengeful spirits' curses grew even stronger.
Afterwards, in the era of the
Fujiwara sekke, as opposed to how noble families at that time boasted of glory, they had delicate personalities, and so due to fear of the grudges and revenges of the era's defeated ones, and due to misgivings about the future, fear of ''mononoke'' became more aroused.
The locked-in lifestyle of the imperial society at that time also fostered in the nobles' minds fear of ''mononoke''.
In this way, ''mononoke'' themselves were thought to be vengeful spirits, and eventually in addition to epidemic diseases, individual deaths, illnesses, and pain were all seen to be due to ''mononoke'', and the illnesses itself also became called ''mononoke''.
Furthermore, due to the concept of the fear of "mono", the things that were said to be the origin of the illnesses, the ikiryō and shiryō themselves, were also thought to have been called ''mononoke''.
Notes
References
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{{Japanese folklore long
Japanese folklore
Japanese ghosts
Yōkai