A Classical Dictionary of Hindu Mythology and Religion, Geography, History, and Literature c5.182

c5.182

The incarnations of the boar, the tortoise, and the fish are thus in the earlier writings represented as manifestations of Prajāpati or Brahmā. The “three steps” which form the germ of the dwarf incarnation are ascribed to Vishnu, but even these appear to be of an astronomical or mythical character rather than glorifications of a particular deity. In the Mahā-bhārata Vishnu has become the most prominent of the gods, and some of his incarnations are more or less distinctly noticed; but it is in the Purāṇas that they receive their full development. According to the generally received account, the incarnations of Vishnu are ten in number, each of them being assumed by Vishnu, the great preserving power, to save the world from some great danger or trouble.