As per the Kachiappar Perur Purana, Lord Shiva in the hill of Kailayam (Mount Kailash), was worshipped by Lord Vishnu-Komuni. The gracious Lord Shiva appeared before him and asked, What is your wish? My eyes have not seen your dance of grace (Aananda Thaandava). So I wish to see that, said Vishnu. Lord Shiva said: The two sages Patanjali and Vyaghrapada have performed some of their virtues, and I showed them my dance in Vellinangiri.(Om Nama Shivaya)