We decree and command that throughout the whole Catholic Church, this year and in every subsequent year, a Novena shall take place before Whit-Sunday, in all parish churches, and also, if the local Ordinaries think fit, in other churches and oratories. To all who take part in this Novena and duly pray for Our intention, We grant for each day an Indulgence of seven years and seven quarantines; moreover, a Plenary Indulgence on any one of the days of the Novena, or on Whit-Sunday itself, or on any day during the Octave; provided they shall have received the Sacraments of Penance and the Holy Eucharist, and devoutly prayed for Our intention. We will that those who are legitimately prevented from attending the Novena, or who are in places where the devotions cannot, in the judgment of the Ordinary, be conveniently carried out in church, shall equally enjoy the same benefits, provided they make the Novena privately and observe the other conditions. Moreover We are pleased to grant, in perpetuity, from the Treasury of the Church, that whosoever, daily during the Octave of Pentecost up to Trinity Sunday inclusive, offer again publicly or privately any prayers, according to their devotion, to the Holy Ghost, and satisfy the above conditions, shall a second time gain each of the same Indulgences. All these Indulgences We also permit to be applied to the suffrage of the souls in Purgatory.

And now Our mind and heart turn back to those hopes with which We began, and for the accomplishment of which We earnestly pray, and will continue to pray, to the Holy Ghost. Unite, then, Venerable Brethren, your prayers with Ours, and at your exhortation let all Christian peoples add their prayers also, invoking the powerful and ever-acceptable intercession of the Blessed Virgin. You know well the intimate and wonderful relations existing between her and the Holy Ghost, so that she is justly called His Spouse. The intercession of the Blessed Virgin was of great avail both in the mystery of the Incarnation and in the coming of the Holy Ghost upon the Apostles. May she continue to strengthen our prayers with her suffrages, that, in the midst of all the stress and trouble of the nations,those divine prodigies may be happily revived by the Holy Ghost, which were foretold in the words of David: “Send forth Thy Spirit and they shall be created, and Thou shalt renew the face of the earth” (Ps. ciii., 30).

As a pledge of Divine favour and a testimony of Our affection, Venerable Brethren, to you, to your Clergy, and people, We gladly impart in the Lord the Apostolic Benediction.
Given at St. Peter’s, in Rome, on the 9th day of May, 1897, in the 20th year of Our Pontificate.
LEO XIII