0 ENCYCLICAL OF POPE PIUS XII WARNING AGAINST MATERIALISM ON THE CENTENARY OF THE APPARITIONS AT LOURDES TO THE CARDINALS, ARCHBISHOPS, AND BISHOPS OF FRANCE IN PEACE AND COMMUNION WITH THE APOSTOLIC SEE Beloved Sons and Venerable Brethren, Greetings and Apostolic Benediction. Deep in our soul are profound and pleasant memories of the pilgrimage to Lourdes which We had the privilege of making when We went to preside, in the name of Our Predecessor, Pius XI, over the Eucharistic and Marian celebrations marking the close of the Jubilee of the Redemption.
Source: Le Pelerinage de Lourdes (Vatican.va)