Yoga is a complete science with universal value system & a comprehensive philosophy that promotes the health and harmony of an individual in relation to society at large.
 
The practice of yoga imparts health, well-being, strength of character & peace of mind even to a lay practitioner.  Integrity, courage, fearlessness, focus, sincerity, a pleasing personality & self-awareness are qualities bestowed upon the practitioners. It shows the path of self-realization for the more advanced Sadhaka.
 
The book is as relevant for the common man as for the highly evolved seer.  It gives a very detailed methodology for over 45+ asanas with its variations & various modifications to experience the desired effects; sequences & practical hints for all kinds & levels of practitioners.  It includes the use of wall, strap, table, stool, bolsters, blankets found in all households to give the desired effects in the asanas.  There are 7 Chapters dedicated to Savasana, Pranayama concluding with Dhyana.
 
BKS Iyengar is considered on of the foremost Yoga teachers in the world.  He is the author of over 30 books on yoga & "Arogya Yoga" will surely lead the reader to a healthy life.