Pranayama is an exact science. It is the 4th step of ashtanga yoga. It regulates the health, controls the prana, steadies the mind, augments the gastric fire, destroys rajas and disease, makes the body light and healthy, and awakens the kundalini. For more tips on how and when to do pranayama, listen to this very informative recording from Swami Sivananda.
Karma Yoga and Sannyasin can both lead you to liberation. This excellent kirtan gives us practical advice for how to reach liberation through the spiritual path. Historical recording of Swami Sivananda, 1887-1963, one of the greatest yoga masters of modern India. To find out more about Swami Sivananda: http://www.sivanandaonline.org, http://my.yoga-vidya.org . Copyright the Divine Life Society .