Compiling meditations he delivered at the Papal Household, Fr. Cantalamessa traces the waves of evangelization from the first centuries of Christianity to the present day. Diving into scientific atheism, rationalism, and secularism, he navigates through the major modern challenges that the announcement of the Gospel encounters. By mapping out the route that evangelization has taken, Fr. Cantalamessa provides readers with a compass steering them not only toward an understanding of the new evangelization, but also toward putting that understanding into practice.