Arunachala

A mountain (Achala) in Tiruvannamalai, Tamil Nadu.

Vishnu and Brahma once saw a blazing ray of light, appearing out of nowhere, immeasurably in expansion. They worshiped this ray of light and it manifested before them. They recognized Shiva and asked him to downsize and to settle on the Arunachala as Arunachaleshvara.