The First Part of this book is devoted to the dicussion of the function and characteristcs of Hindu sadhana in general. The Second Part deals with the particular forms of Hindu Sadhana-Karma, Jnana and Bhakti. We have included the Yoga form of Sadhana under Karma, and have taken the system propunded by patanjali as representative of the Yoga, such as Hatha-yoga, Laya-yoga etc. still They seem to be of the nature of preparatory disciplines, helping to make the vehicle,-the body and the vital processes, fit for the higher processes, and are not possibly meant to be independent methods of realisation. The Tantric method of sadhana has been included under the bhakti line, because it emphasises the aspect of upasana or workship.