The Gods, who frequently took a beating in the hands of the Rakshasas (demons), went to Lord Brahma for a lasting solution. Lord Brahma told them that only a warrior born out of Shaktipunj (semen of Lord Shiva) can lead the Gods to victory. The Gods prayed Lord Shiva who agreed and approached Goddess Parvati to conceive a son. The Gods sent Agni, the God of fire, in the form of a pigeon to observe the great event. Lord Shiva found this out and released His semen in the fire of Agni. Even the God of fire couldn’t bear the heat of Lord Shiva’s reproductive force and dropped it it in the holy waters of river Ganges. Mother Ganges also couldn’t stand the heat and released it on Earth. After being sanctified by the holy fire and sacred waters of Ganges it became Mercury or Para – the only metal in liquid form. The solid form of mercury is popularly known as Parad.