On Wednesday, June 9, the Archbishop of Cologne, Cardinal Joachim Meisner, addressed 4,000 priests from around the world. They were gathered at the Basilica of St Paul Outside the Walls in Rome for the conclusion of The Year for Priests. He told them that nothing is more important for a priest than conversion of heart because only this will enable them to fulfil their mission to bring Christ to others. He went on to say that making "corrections" to ecclesial structures is not sufficient to evangelise priests, but rather a change of heart must occur because "the greatest obstacle to the transmission of Christ is sin".