Purity of heart is what enables us to see.

Dear young people, the happiness you are seeking, the happiness you have a right to enjoy has a name and a face: it is Jesus of Nazareth, hidden in the Eucharist. Only he gives the fullness of life to humanity! With Mary, say your own "yes" to God, for he wishes to give himself to you.

In the desert we rediscover the value of what is essential for living; thus in today's world there are innumerable signs, often expressed implicitly or negatively, of the thirst for God, for the ultimate meaning of life. And in the desert people of faith are needed who, by the example of their own lives, point out the way to the Promised Land and keep hope alive.

Advent, this powerful liturgical season that we are beginning, invites us to pause in silence to understand a presence. It is an invitation to understand that the individual events of the day are hints that God is giving us, signs of the attention he has for each one of us.

While conscious of the challenges you face, I encourage you to follow faithfully in the footsteps of your founders, and to stir into flame the charisms and apostolic zeal which you have inherited from them, confident that Christ will continue to work with you and to confirm your preaching with signs of his presence and power.

The abuse of faith has to be resisted precisely.

Preservation of the environment, promotion of sustainable development and particular attention to climate change are matters of grave concern for the entire human family. No nation or business sector can ignore the ethical implications present in all economic and social development. With increasing clarity scientific research demonstrates that the impact of human actions in any one place or region can have worldwide effects.