Lord Shiva has given half his body to his consort Goddess Parvathi. This form of God has half of its bode as Shiva and the other half Goddess Parvathy.
Ambho dhara syamala kundalayai, Tadith prabha thamra jada daraya, Nireeswarayai, nikhileswaraya, Nama sivayai cha Nama shivaya