Dears brothers, dears humans; here are we still living on earth, in this terrestrial life, but the Reign of heaven approches itself day after day. But by our ways of being, that is to say our ways of thinking and acting, where are we going? By the grace of God, I wrote this book for it's help us to win the Kingdom of heaven. I pray to you Lord to act in favor of all humans who shall come read this book, all those who will take it in heart, for it's serves them to good and participates in leading them to you Lord, Source of living water, Source full of wisdom, Source full of love, Source full of power: you Lord God. Guide, heavenly Father those who love you and find you, those who are thirsty of your holy Word, guide the readers of this book in the endurance for his reading, in the good comprehension and in the consideration, for that this book bring them, bring them back or strengthen them in your way which is Jesus, our Lord and our Savior. May the humble stone which is this book plays it role as you want you in the realization of the edifice which is the salvation of humans. Glory to you Lord in all eternity.