When awakened, it rises through a central energy channel called sushumna nadi, pierces and purifies each of the chakras or energy centers on its way until it reaches the sahasrara chakra at the crown of the head where it explodes into a thousand petalled lotus of radiant light. (unitywoods.com)
Classical Hatha Yoga focuses on shifting the Sun and Moon Energy by use of physical asanas into the core, where it can flow into Sushumna Nadi (channel) thereby rousing the Kundalini Energy. (awakeninnerbuddha.in)
This initiates the practice of establishing sushumna breathing. (yogainternational.com)