After visiting Notre Dame du Laus, Eugene wrote this description of the place and of the evangelization that the Missionaries would undertake from there:
We have formed an establishment at Notre Dame du Laus thus bringing ourselves into direct relations with the dioceses of Gap, Digne, Embrun and Sisteron.
We have become the guardians of one of the most celebrated shrines of the Blessed Virgin where the good God is pleased to manifest the power that he has granted to this dear Mother of the Mission.
Letter to Pierre Mie, October 1818, EO VI n.31
At this moment the Missionaries did not have a specifically Marian identity, but working at Laus this started to be expressed as they came to understand that Marian shrines did form a part of their missionary outreach.