Most treatise on Meditation and Yoga so far published in the Occident are chiefly expository, in a philosophical or historical way, rather than practical. But here, within these covers, we have at last, a treatise which presents the essential technique and methods of meditation in its Buddhistic form so dearly and simply that any person of average intelligence desirous of practicing such meditation can do so without difficulty, without danger, and without recourse of guru. In Hindu and other systems of meditation and Yoga, on the contrary, particularly where certain breathing-exercises are prescribed, a guru is not only necessary to teach and to direct, but also to safeguard the yogin.