Mind is simply a faculty given by nature to human beings to be used for survival.
As the nature has provided other animals with sharp teeth, strong jaws, poisonous bite etc. for their day to day survival, human beings are provided with a developed mind with the help of which they have conquered the planet Earth. But for the mind, human beings can be killed even by an ant!

This simple servant, a pawn, however, has become the King. Would you, the King, accept this?!