From its first moments, the Berriz missionary movement had solid foundations.
The School itself, with many activities related to the missions.
The Mercedarian Missionary Youth, which was intended to give a missionary education to school pupils.
The Ángeles de las misiones magazine, published by the MMB.
Later, after the death of Margarita María, the Missionology Weeks, at which missionaries set out theoretical aspects of their work and describe new experiences.