Catechism of the Catholic Church

xvi Apostolic Letter Laetamur Magnopere and origin is found in the Unity of the Trinity may be strengthened and extended to the ends of the earth. To Mary, Mother of Christ, whose Assumption body and soul into heaven we celebrate today, I entrust these wishes so that they may be brought to fulfillment for the spiritual good of all humanity. From Castel Gandolfo, August 15, 1997, the nineteenth year of the Pontificate.