Several works of Swami Sivanandaji on different systems of Yoga have already been published. The present publication can be called, in other words, the Yoga of synthesis: for herein can be found, at a glance short, analytical notes on the systems of Raja Yoga, Bhakti and Vedanta.
It is generally agreed that karma Yoga forms the preparatory basis for the other three paths. Therefore, a separate section on the same subject has been appended to this book.
The first section is comprised of the primary lessons on Raja Yoga given through the correspondence course of the Yoga-Vedanta Forest University (now Academy). It should be noted, however, that no system can effect by itself an integral spiritual development of the personality of man. All systems are in fact inter-connected with each other. It is also true that some are very emotional by temperament, some prefer occultism and psycho-analytical investigations, and yet some others appreciate the philosophy of vedanta more than any other system.
Each one has a particular preference for a particular course of Sadhana, and is at liberty to follow the path suited to his/her temperament. But if he/she is to achieve quick progress at all, on his chosen path, it is essential that he/she must take recourse to the help from other systems. Triple Yoga, therefore, meets that need-providing the reader with an elementary knowledge of all the important branches of Yoga Sadhana.