(1730–1781). , written in as 鬼, is read in China as
guǐ (
pinyin), meaning something invisible, formless, or unworldly, in other words, a 'ghost' or the 'soul of the dead'. On the other hand, the Japanese dictionary written in Japan in the 10th century explained the origin of the word as a corruption of , meaning 'to hide'. The dictionary explained that is hidden and does not want to reveal itself. When the character for 鬼 was first introduced to Japan, it was pronounced as in the reading. The character 鬼 has changed over time in Japan to become its own entity, and there are significant differences between the Japanese and the Chinese
guǐ (鬼). The Chinese
guǐ generally refers to the disembodied spirits of the dead and are not necessarily evil. They usually reside in the underworld, but those with a grudge sometimes appear in the human world to haunt, and
Taoist priests and others have used their supernatural powers to exterminate them. Japanese , on the other hand, are evil beings that have substance, live in certain places in the human world, such as mountains, have red or blue bodies with horns and fangs, are armed with , and can be physically killed by cutting with
Japanese swords. The and are the earliest written examples of as entities rather than soul of the dead. The , whose compilation began in 713, tells the story of a one-eyed who ate a man. , completed in 720, tells of a -wearing watching the funeral of
Emperor Saimei from the top of Mount Asakura. The character for 鬼 is believed to have been read as when the was completed, and was also read as , , and in the Heian period. In , the character for 鬼 is read as . It was not until the end of the Heian period that the reading of for the character 鬼 became almost universal. Particularly powerful oni may be described as
kishin or
kijin (literally "oni god"; the "ki" is an alternate character reading of "oni"), a term used in
Japanese Buddhism to refer to
Wrathful Deities. The
oni was
syncretized with
Hindu-
Buddhist creatures such as the man-devouring
yaksha and the
rakshasa, and became the
oni who tormented sinners as
wardens of Hell (
Jigoku), administering sentences passed down by Hell's magistrate, King
Yama (Enma Daiō). The
hungry ghosts called
gaki (餓鬼) have also been sometimes considered a type of
oni (the Kanji for "ki" 鬼 is also read "oni"). Accordingly, a wicked soul beyond rehabilitation transforms into an
oni after death. Only the very worst people turn into
oni while alive, and these are the
oni causing troubles among humans as presented in folk tales. Some scholars have even argued that the
oni was entirely a concept of Buddhist mythology. Oni bring calamities to the land, bringing about war, plague/illness, earthquakes, and eclipses. They have the destructive power of lightning and thunder, which terrifies people through their auditory and visual effects. ==Origins==