Kundalini Yoga (kuṇḍalinī-yoga) is a school of yoga that is influenced by Shaktism and Tantra schools of Hinduism. It derives its name through a focus on awakening kundalini energy through regular practice of Mantra, Tantra, Yantra, Yoga or Meditation. Kundalini Yoga is often said as the most dangerous form of yoga because of the involvement of subtle energies.
"In Kundalini Yoga we harness the mental, physical, and nervous energies of the body and put them under the domain of the will, which is the instrument of the soul. This technology precisely and consciously combines breath, mudra, eye-focus, mantra, body locks, and postures to balance the glandular system, strengthen the nervous system, expand lung capacity, and purify the blood. It brings balance to the body, mind, and soul."