15,000 young people around Rome are expected to descend upon St. John Lateran Basilica tomorrow in preparation for this summer’s 20th World Youth Day, to be held in Cologne, Germany.

The young people will gather for a traditional meeting of reflection and prayer on the Pope's Message for this World Youth Day: "We Have Come to Adore Him."

Cardinal Camillo Runi, vicar general for the diocese of Rome, will preside at the annual celebration, the schedule of which includes a talk on the Eucharist delivered by Daniel Ange, a French monk and founder of the "Jeunesse lumiere" movement.

Participants will also be treated to songs and witnesses, as well as a moment of Eucharistic adoration during which the central points of the Pope’s Message will be presented.

The Holy Father has also prepared a special letter, which will be read to the young people at the closing of Thursday’s meeting.