Le Pelerinage de Lourdes §20

²⁰ Near the end of his life, this great Pontiff decided to install and bless a reproduction of the grotto of Massabielle in the Vatican gardens, and in those days his voice rose to the Virgin of Lourdes in an ardent and trusting prayer: "In her power may the Virgin Mother, who once cooperated through her love with the birth of the faithful into the Church, now be the means and guardian of our salvation; may she return the tranquillity of peace to troubled souls; may she hasten the return of Jesus Christ in private and public life."