Patanjali yoga sutras is an age-old treatise written on the four-fold path of yoga. It delves into the workings of our mind, body and spirit. Originally written in Sanskrit, this book is by Swami Vivekananda, detailing each sutra, simultaneously guiding us on ways to reach our goals. Starting from the very basics like concentration and meditation, to higher goals like attaining liberation and self-realization, these sutras are meant to teach us ways that help elevate lives and spirits. Easy to practice techniques, simplified life-philosophies and a modern rendering to the age-old wisdom make this book a collectors jewel..