A Commentary in verse on Yoga-sutras of Patanjali and Vyasa-bhasya with futher elaboration in Sanskrit and Bengali, the first philosphical work of the author bears the stamp of his gentius like all his later works. For 20 years it remained as manuscript unit a local Raja came forward to fund its publication in 1910. The book has had several new editions with additional materials, which are includes. A useful book for all who care to get the message of the ancient sages on what Yoga truly is.