Originally from Hindu mythology, the vajra is the [[weapon]] of the thunder god Indra (analagous to Thor's hammer Mjolnir in Norse mythology). It is a small, two-headed [[club (weapon)|]] with multiple prongs on each head, and symbolizes both the properties of a diamond (indestructibility) and a thunderbolt (irresistible force). From Hinduism the concept spread, manifesting as a weapon-shaped ritual item used in Tantric and Tibetan branches of Buddhism.

The terms appearing below are subtypes of vajra. 

* 独鈷杵 (Japanese: [i]tokkosho / dokkosho[/i]): this term appeared in [[Toramaru Shou]]'s "spell card":http://en.touhouwiki.net/wiki/Undefined_Fantastic_Object/Spell_Cards/Stage_5#Spell_Card_71 (Her weapon is not a vajra, though.) 
* 三鈷杵 ([i]sankosho[/i]) 
* 五鈷杵 ([i]gokosho[/i]): used by [[Sowaka-chan]]. 

h4.External links

* "Wikipedia: Vajra":http://en.wikipedia.org/wiki/Vajra
独鈷杵 三鈷杵 五鈷杵 金剛杵