Kundalini
Literally serpent power. Cosmic energy which is depicted as a snake coiled at the base of the spine (Muladhara chakra) and that eventually, through the practice of yoga, rises up the Sushumna nadi. As it rises, the Kundalini awakens each successive chakra, until it reaches the Sahasrar. The manifested Kundalini becomes Kula, the all transcending light of consciousness.