I can just imagine a mischievous smile on the Holy Father’s face as he begins the final paragraph (below).  He was giving a ‘thank-you’ address to World Youth Day Volunteers.

“As you now go back to your everyday lives, I ask you to treasure this joy-filled experience in your hearts and to grow each day in giving yourselves to God and to others. Perhaps many of you felt a very simple question forming in your hearts, faintly or forcefully as the case may be: What is God asking me to do? What is his plan for my life? Is Christ asking me to follow him more closely? Should I not spend my whole life in the mission to proclaim to the world the greatness of his love through the priesthood, or the consecrated life, or marriage? If this question has surfaced, let the Lord be your guide and become volunteers in the service of the One who “came not to be served but to serve, and to give his life a ransom for many” (Mk10:45). Your life will achieve fulfillment in ways you cannot imagine.

Perhaps some of you are thinking: the Pope came to thank us and here he is asking us for something more! You are right. But that is the mission of the Pope, the Successor of Peter. After all, Peter, in his First Letter, reminds Christians that they were ransomed at a great price: that of the blood of Christ (cf. 1 Pet 1:18-19). Those who look at their lives from this perspective know that Christ’s love can only be met with love. That is what the Pope is asking you to do in this farewell: to respond in love to the One who for love gave himself up for us. Once again, I thank all of you. May God be ever at your side!”

— Pope Benedict XVI to WYD volunteers, Madrid, 21 August 2011.

Full text: http://www.zenit.org/article-33254?l=english