Jashin

The symbol of Jashin.

Jashin (ジャシン, literally meaning: wicked heart; evil god; evil design) is the god worshiped in Jashinism (ジャシン教, Jashinkyō). One of its followers is the Akatsuki member Hidan. Jashin, according to Hidan, expects that all his followers — so named "Jashinists" — bring nothing less than utter destruction and death. Hidan always used to pray to Jashin before a fight, asking for a "good kill." If he is unsuccessful, or is not allowed to kill, he prays for forgiveness.

When undergoing a sacrifice, Hidan changes appearance after ingesting his opponent's blood. His skin then turns black with white markings representing a skeleton, a symbol of absolute death. He draws Jashin's symbol on the ground in his own blood and stands in the centre. This symbol is an equilateral circumscribed triangle (an upside down triangle with a circle around it). Once his sacrificial ritual takes place, any kind of pain or injury that Hidan takes is also inflicted upon his sacrifice, be it a mere scratch or a pierce in the heart. However, this ritual can be broken if Hidan either steps or is forced out of the circle. This technique is called "Curse Technique: Death Controlling Possessed Blood."

Hidan is the "successful experiment of the Jashin religion's secret techniques," which grants him immortality. He uses this advantage to otherwise fatally injure himself while he is linked to his opponent in order to kill them.

Trivia

• Jashinism is REAL, its not a widespread religion, but Jashinism is very much real. Jashinism began in ancient Japan, though it is not practiced the way 'Hidan' does. Jashinism was originally brought up to show its followers that they were given pain to balance pleasure, and the more you sacrifice, the more you can ignore/find pleasure in pain. Jashinism since then has spread into Europe, Asia (Obviously), and America.