The truth that sets us free cannot be kept to ourselves; it calls for testimony, it begs to be heard, and in the end its convincing power comes from itself and not from the human eloquence or arguments in which it may be couched. . . .
[W]e do not so much accept the truth in a purely intellectual act as embrace it in a spiritual dynamic that penetrates to the core of our being. Truth is passed on not merely by formal teaching, important as that is, but also by the witness of lives lived in integrity, fidelity and holiness; those who live in and by the truth instinctively recognize what is false and, precisely as false, inimical to the beauty and goodness which accompany the splendour of truth. . . .
No one who looks realistically at our world today could think that Christians can afford to go on with business as usual, ignoring the profound crisis of faith which has overtaken our society, or simply trusting that the patrimony of values handed down by the Christian centuries will continue to inspire and shape the future of our society. We know that in times of crisis and upheaval God has raised up great saints and prophets for the renewal of the Church and Christian society; we trust in his providence and we pray for his continued guidance. But each of us, in accordance with his or her state of life, is called to work for the advancement of God’s Kingdom by imbuing temporal life with the values of the Gospel. Each of us has a mission, each of us is called to change the world, to work for a culture of life, a culture forged by love and respect for the dignity of each human person. . . .
[O]nly Jesus knows what “definite service” he has in mind for you. Be open to his voice resounding in the depths of your heart: even now his heart is speaking to your heart. Christ has need of families to remind the world of the dignity of human love and the beauty of family life. He needs men and women who devote their lives to the noble task of education, tending the young and forming them in the ways of the Gospel. He needs those who will consecrate their lives to the pursuit of perfect charity, following him in chastity, poverty and obedience, and serving him in the least of our brothers and sisters. He needs the powerful love of contemplative religious, who sustain the Church’s witness and activity through their constant prayer. And he needs priests, good and holy priests, men who are willing to lay down their lives for their sheep. Ask our Lord what he has in mind for you! Ask him for the generosity to say “yes!” Do not be afraid to give yourself totally to Jesus. He will give you the grace you need to fulfil your vocation. — Benedict XVI