This "Yoga in Practice" book contains a Full Yoga Training Course according to the teachings of Swami Dev Murti Ji. This book was written in the 1960s by our Yoga Teachers, Jack Boulton and John More, who were Students of Swami Dev Murti Ji for over 25 years. During the 1960s, Jack & John also wrote a "Yoga in Daily Life" booklet, which is available as a Kindle version. Anyone who purchases the Kindle version of "Yoga in Practice" can request a PDF version (which is for personal use only) by using the contact details below. This Kindle Edition was produced and published on 20 March 2018 as a memorial for Swami Dev Murti Ji’s birthday. The original “Yoga in Practice” book was produced by Jack and John in the 1960s, inspired by the Yoga Teachings of Swami Dev Murti Ji. We hope that this Kindle Edition is useful to anyone interested in The Yoga of Swami Dev Murti Ji. Apart from the format and presentation, and a few extra colour photographs, the actual content is unchanged from the original (apart from a few necessary but minor typographical corrections). Swami Dev Murti Ji was the Great Grand Father of Yoga in recent times. Although he chose not to be well known and famous, he taught many Students who then set up their own Ashrams, Gurukuls, Associations, Groups, Societies, and Commercial Schools. (He once said in a lecture that his target was 1%, which we assumed meant 1% of the whole world population, not just India or UK or Germany.) Swami Ji was responsible for teaching most of the "big names" in Yoga for at least the past 60+ years, in India and in the rest of the world. He was a Teacher of Teachers and our Grand Teacher. He was relatively unknown to the world media, although when I was with him for a year (1987) in India, everyone seemed to know him wherever we went and they often talked about the "good old days". Swami Ji had often taught three or more generations in the same family! Swami Dev Murti Ji researched and developed the original Kundalini Yoga over a period of at least 25+ years in India and designed it for the ordinary person living today (rather than a Yogi living a few thousand years ago; which is the time scale of the classical Yoga literature). However, until recently, most people did not know about Kundalini (and some people did not even know about Yoga), so we generally referred to his system as just Yoga rather than Kundalini Yoga. It is our honour and privilege to be able to bring Swami Ji’s eternal timeless knowledge to everyone who is interested. Please email any feedback or enquiries to bhavin.desai@ntlworld.com and visit for further information about Swami Dev Murti Ji's Yoga; including links to photographs, videos, etc. POSTSCRIPT My website no longer exists (because the service provider terminated their hosting service for everyone) but an archive from 2014 is available You may also like to have a look at my YouTube