What are sacred groves and their role in biodiversity conservation?

in many cultures, tracts of forest were set aside, and all the trees and wildlife within were venerated and given total protection. And this sacred groves are found in Khasi and Jaintia hills in Meghalaya, Aravalli hills of Rajasthan, Western Ghats regions of Karnataka and Maharashtra and the Sarguja and many more. They are in situ type of conservation the number of plants is being saved in the sacred groves of Meghalaya they have rare and threatened plant in that refugees.