46 What Our Predecessors, Leo XIII in the letter Auspicato and Benedict XV in the encyclical Sacra Propediem , wrote to all the bishops of the Catholic world and which greatly pleased them, We repeat and recommend to your pastoral zeal. We expect that you will favor in every way within your power the Third Order of St. Francis, either by yourselves or by means of trained priests and eloquent preachers teaching the people the aims of this Order of men and women who live in the world, how worthy it is of popular esteem, how easy it is to enter this Order, to observe its holy rules, and how abundant are the indulgences and privileges which the Tertiaries enjoy. Finally, make known the great blessings which flow from the Third Order to individuals and to the communities where they live. You should urge those who have not yet given their names to this immortal band of soldiers to do so this year. As regards those who cannot, because of their age, join the Third Order, they should be enrolled as "Cordigeri" so that even from childhood they may become accustomed to the holy discipline of this Order.
Source: Rite Expiatis (Vatican.va)