Knowing who you are has no equivalent. Questioned, sarcastically, about his identity, Don Quixote, protested emphatically: I know who I am And Jesus, model of integrity and independence, lapidary affirmed of himself: I am the truth itself, the absolute truth: I in the Father and the Father in M. And because I am the truth, I am also the way and the life. The discovery of s leads the human being to responsible authenticity. To what extent ... he tries, in a lighthearted style, with simple language, to provide the reader with effective help to know himself, to appropriate himself and to enjoy his authenticity, desirable and true individuality: the discovery of the intrinsic purpose of his unique and unique life. unrepeatable.