It also represents the downfall of Indra, and a new beginning in Hindu philosophy, from a more sacrificial/ appeasement oriented worship, to a more spiritual plane of thought. This evolution of thought in Hinduism was brought about by Krishna, and therefore he has been the most important Hindu deity since then - considered an 'avatar' of the supreme. The more we look at his life story - we find him to be a great reformer of his time.[citation needed]
According to ancient Vaishnava legends the Vedic Deva (God), Indra (God of rain & lightning) was feared by human beings because he would either give the people no rain or flood them if he was not satisfied with their worship. When Krishna found out, he opposed the performance of sacrificial worship for Indra. He emphasized the importance of karma and doing ones duty. This supposedly made Indra angry at the boy Krishna (an incarnation of the Supreme God according to the Bhagavata Purana [2]).
Indra thus invoked many clouds to appear in the sky and schemed to flood the region with rains lasting for seven days and seven nights. Krishna in reply then lifted Govardhan hill, under which all the animals and people of the region took shelter, safe from the rains of Indra's fury. Ultimately, Indra accepted defeat, and after praying to Krishna, left for his heavenly abode, the Svarga.