In his second avatar, Kurma, the tortoise, Vishnu took on the form of a slow but steady creature to support Mount Mandara, which was being used as a churning rod during the churning of the ocean ...

Devas and Asuras churned the cosmic ocean for Amrit, the nectar of immortality. Lord Vishnu, as Kurma ... This made his throat turn blue, and soon he became the Neelkanth, one with the blue ...