The first effect of this practice is perceived in the change of expression of one's face; harsh lines disappear; with calm thought calmness comes over the face. Next comes beautiful voice. I never saw a Yogi with a croaking voice. These signs come after a few months' practice. After practicing the above mentioned breathing for a few days, you should take up a higher one. Slowly fill the lungs with breath through the Idâ, the left nostril, and at the same time concentrate the mind on the nerve current. You are, as it were, sending the nerve current down the spinal column, and striking violently on the last plexus, the basic lotus which is triangular in form, the seat of the Kundalini. Then hold the current there for some time. Imagine that you are slowly drawing that nerve current with the breath through the other side, the Pingalâ, then slowly throw it out through the right nostril. This you will find a little difficult to practice. The easiest way is to stop the right nostril with the thumb, and then slowly draw in the breath through the left; then close both nostrils with thumb and forefinger, and imagine that you are sending that current down, and striking the base of the Sushumnâ; then take the thumb off, and let the breath out through the right nostril. Next inhale slowly through that nostril, keeping the other closed by the forefinger, then close both, as before.