Sit in a cross legged position. Keep the forefingers of both your hands on your forehead. Shut both your eyes with the second, third and fourth fingers of both your hands, close both your ears by inserting both your thumbs into them.
Breathe air fully into your lungs.
Breathe out through your nose uttering the word “Aum,” till you have exhaled out the complete air from your lungs as slowly as possible.