This book is comprised of lectures and talks of Swami Prabhavananda on spiritual life. The Swami had an extraordinary ability to make even the most subtle of enigmatic ideas exciting and comprehensible. He contributed a great deal to the understanding of Vedanta in the West and also facilitated a better understanding of all the religions of the world.
There is only one sin -- and that sin is weakness. When I was a boy, I read Milton's Paradise Lost. The only good man I had any respect for was Satan. The only saint is the soul who never weakens, faces everything, and determines to die game.
-Swami Vivekananda