Brothers are received to serve God in the Congregation of the Holy Spirit and the Holy Heart of Mary in order to help the missionaries in their apostolic work and by freeing them to devote themselves fully to carrying out their sacred functions; under the direction of their superiors, they will work for the good of the local people. At all times they will give an example of piety, modesty and all the other virtues. They will guard against the harm that can be done by impatience and getting too excited, by laziness and all the other faults that are seen so clearly by others.

Rule for Brothers of the Congregation: 01.03.1851. N.D.XI, p. 487-515