... the worshippers of the ocean and spirits of the waters , they were the nation of naga ; a people of a complexion of soothing light blue ... the sky worshippers , who had their dwellings mostly in mountain regions , who harnessed the energy of starlight and prayed to the wind and the cosmos were the deva ... those whose deities manifested in the mightiness of great stone boulders and worshipped the durableness of iron were the nation of raksha ... and the nation that worshipped the earth as the mother of all beings and believed fire as the ultimate enigma holding all secrets of power and life , was the yaksha ... rachan envisions these fantastic people who had inhabited a land in an age unclasped by time .