Why is the festival of Ras celebrated? What is the significance of this festival?

Why is the festival of  Ras            

celebrated? What is the significance of this festival?     

Ras festival is very popular not only among Vaishnavites but also among Bengalis Raas, the festival of life, is celebrated on the night of Kartik Purnima

what is meaning of Ras?

It is said that Ras is from 

'Ras'. Rasa means essence, essence, joy, joy, nectar and Brahman. Purushottam Sri Krishna is the concentrated reservoir of sweet juice. Raas around him. The matter of dancing round by holding hands of men and women is absolutely connected with Ras. It is called 'Hallibak' dance.