Yoga is not just a physical exercise but is also a way of keeping the mental state intact. Yoga helps in keeping the body fit and fresh and also clears the mind from any stress which indirectly proves to be detrimental when it comes to staying healthy. The benefits of yoga are immense and hence it is becoming popular across the globe. However, its benefits can be achieved only if it is practiced with proper discipline and order. Hence, this book has been prepared so that readers can reap all the benefits of practicing Yoga in the correct manner. To give a structured knowledge pattern about yoga, Light on Yoga has been divided in three segments. The first segment deals with the understanding of yoga. In the second part, various yogasanas and kriyas are explained. The third part deals with pranayama and it covers topics like the techniques of pranayama and its effects.