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O-fuda (御札 or お札 o-fuda?) is a type of household amulet or talisman, issued by a Shinto shrine, hung in the house for protection, a gofu (護符?). It may also be called shinpu (神符?). It is made by inscribing the name of a kami and the name of the Shinto shrine or of a representative of the kami on a strip of paper, wood, cloth, or metal.
It is to be renewed yearly, typically before the end of a year, and attached to a door, pillar, or ceiling. It may also be placed inside a private shrine (kamidana). It is believed to protect the family in residence from general harm, such as a disease. A more specific o-fuda may be placed near particular objects such as one for kitchen to protect from accidental fire. A popular o-fuda called jingū-taima (神宮大麻) or simply taima (大麻) is issued by Ise Shrine. It is made from hemp cloth (taima) that is blessed and replaced every year — as the use of hemp as a material was common from antiquity.
A portable form of o-fuda, commonly called omamori (お守り or 御守, o-mamori) is typically given out wrapped in a small bag made of decorated cloth. This originates from Onmyōdō and Buddhism, but was subsequently adopted by Shintoism. Both Buddhist temples and Shinto shrines give out these o-mamori. While an o-fuda is said to protect a whole family, an o-mamori offers support for personal benefits.
In popular culture
Sailor Mars of the manga and anime series Sailor Moon is associated with an Ofuda charm she uses against her antagonists by attaching it on their persons, thus summoning both fire and a phoenix as part of the incantation, "Aku Ryo Tai San" (Begone, Evil Spirits!).