The trident symbol (called "the devil's pitchfork''), from the fishing origins is most commonly associated with Poseidon, the god of the oceans and sea in Greek mythology.
By hitting the earth with his trident, Poseidon created the horse and some water sources in Greece. It symbolizes major gods among various occult groups. In India, it is linked to the Hindu "trident-bearer" Shiva, spouse of the skull-bearing goddess Kali.In Christian tradition the trident is associated with the Devil who commonly include a trident as his sceptre.
More recently, trident spear has been used by Hindu militants in India to intimidate Christians.
