Kubera, the child of Vishrava was skilled in an airplane to visit Shiva sanctuaries the nation over in acknowledgment of his commitment to Lord Shiva. While he was flying close to the waterway Cauvery Kubera was amazed to see a deer, tiger, bovine, elephant, snake, and rodent drinking water almost an Ilandhai tree on the stream bank without hatred, to answer his marvel Kubera heard a voice from the sky saying it was where Vedas visited, occupied by Gandharvas and prompted him to revere the shivalingam under the iilanadhi tree. 

The sanctuaries Ilandhai tree gives natural products on all seasons which was utilized for ordinary puja even today. During the time of Chera Chola and Pandya's, there was a cavern association that existed among Chidambaram and Sangameshwarar sanctuary and pujas are performed at the same time in the two sanctuaries. 

The dairy animals behind the Vishnu sculpture remains the amicability among Saivism and Vaishnavism. It was said from ages that each inch under the sanctuary has one shiva lingam.