Be bold and face the truth', said Swami Vivekananda. Here is a book that teaches us how to do it. Here is a book for the guidance of sincere spiritual aspirants who have heard the divine call, who have in response to it accepted God-realization as the highest goal of life, and who consider no sacrifice too great for the attainment of that goal. It is an invaluable guide to practical spiritualiy.
The book one must read to learn natural sciences is the book of nature. The book from which to learn religion is your own mind and heart.
-Swami Vivekananda