Yūrei
supernatural creature in Japanese folklore
Yūrei (幽霊) are figures in Japanese folklore analogous to the Western concept of ghosts. The name consists of two kanji, 幽 (yū), meaning "faint" or "dim" and 霊 (rei), meaning "soul" or "spirit". Alternative names include Bōrei (亡霊), meaning ruined or departed spirit, Shiryō (死霊), meaning dead spirit, or the more encompassing Yōkai (妖怪) or Obake (お化け). Like their Western counterparts, they are thought to be spirits barred from a peaceful afterlife.
Japanese afterlife
According to traditional Japanese beliefs, all humans have a spirit or soul called a reikon (霊魂). When a person dies, the reikon leaves the body and enters a form of purgatory, where it waits for the proper funeral and post-funeral rites to be performed so that it may join its ancestors. If this is done correctly, the reikon is believed to be a protector of the living family and to return yearly in August during the Obon Festival to receive thanks.
However, if the person dies in a sudden or violent manner such as murder or suicide, if the proper rites have not been performed, or if they are influenced by powerful emotions such as a desire for revenge, love, jealousy, hatred or sorrow, the reikon is believed to transform into a yūrei which can then bridge the gap back to the physical world. The emotion or thought need not be particularly strong or driven. Even innocuous thoughts can cause death to become disturbed.
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