Today's feast, once celebrated universally as an optional memorial, is now observed primarily by Franciscans. This feast had been permitted to enliven the hearts of men with the flame of love and devotion.
To enkindle love for Jesus crucified in the hearts of the faithful, Paul V extended the feast of the stigmata of St. Francis of Assisi (September 17) to the universal Church. The prayer for the Mass is as follows: "Lord Jesus, who at a time when charity was growing cold in the world, to enkindle our hearts with the fire of Thy love, didst renew the sacred stigmata of Thy passion in the flesh of the Blessed Francis, grant us, in Thy goodness, that by his merits and prayers, we may continually bear the cross and bring forth worthy fruits of penance. Thou who livest," and so on. In this prayer we see the great realism of the Church, which to the highest elevation of thought unites the effective practice of all the virtues. - Three Ages of the Interior Life