The author had quoted from this Upanishad and explained its ideas in several of his lectures, class-talks, and conversations. All this material, spread throughout the nine volumes of his Complete Works, has been brought together in this book for the first time. What makes this compilation a treasure trove of original ideas and masterly insights is that the author goes straight to the heart of the subject to focus on the essentials, and to evolve practical methods from abstract principles.
What the world wants today is twenty men and women who can dare to stand in the street yonder and say that they possess nothing but God. Who will go? Why should one fear? If this is true, what else could matter? If it is not true, what do our lives matter? - Swami Vivekananda