Shiva - Final Fantasy Summon Mythology

Shiva is the supreme god of the Hindu mythology. In the appearance and as usual, doesn't have any similarity with SHiva we known on Final Fantasy Series. Perhaps only in its blue skin and in the long hair, but nothing related to the ice. Shiva described as a god who always sitting on a large tiger skin and make the the meditation in Himalaya Mountain. He also described has three eyes (Tri Netra)