Once, Parvathy Devi in a playful mood closed the eyes of Lord Shiva with her hands.

 She did not think about the consequence of this. 

Shiva’s eyes are the light of the world. 

The whole world plunged into darkness. 

The Lord is full of kindness. 

He immediately created the third eye on his forehead and brought back light to the world.

Click below to listen to Shiv Tandav Stotram 

Knowledge Bank

Sage Narada says...

Don't dismiss something just because you don't understand it: If you come across something unfamiliar, don't assume it's wrong or false just because you don't know about it. Learning is a step-by-step process: First, you need to study to gain knowledge. Then, use that knowledge to truly understand the subject. Once you understand it well, only then can you make a fair judgment about it. In simple terms, it advises you to be open-minded and patient in learning before forming opinions.

Which is the only existing shakha of Rigveda?

Shakala.