The historian of modern yoga Elliott Goldberg writes that the book "proclaimed in print" a "new utilitarian conception of Surya Namaskar" (the salute to the sun) which Sivananda had originally promoted as a health cure through sunlight.
Elliott Goldberg, a historian of modern yoga, argues that the book presented a novel approach to Surya Namaskar, initially promoted by Sivananda as a means to enhance health through sunlight.