 Along with the many kriyas, meditations and practices of Kundalini Yoga, a simple breathing technique of alternate nostril breathing (left nostril, right nostril) is taught as a method to cleanse the "nadis", or subtle channels and pathways, to help awaken Kundalini energy.Sovatsky (1998) adapts a developmental and evolutionary perspective in his interpretation of Kundalini Yoga.That is, he interprets Kundalini Yoga as a catalyst for psycho-spiritual growth and bodily maturation.