Four sons of a great Brahmin
The names of those four sons were “Deewari”, “Priyamedha”, “Sanskrit” and “Suvrit”.
Their constant penance to shiv was interrupted by an asura
Asura attacked the Vedas, Dharma, and Dharmatmas, which is called “Doshana” on Ratnamal Mountain. That Asura even got Brahma.
They then went to destroy the for Brahmin sons. Suddenly the ground opened up. There was a loud thunder
Shiv appeared. His immense light. It destroyed and made into ashes – the demon and his army
The story is about the steps in mediation
Bhavin