Pere de Caussade wrote to Madame de Lesen after she had become a Religious in the Order of the Annunciation, which is affiliated with the Order of Poor Clares:
 “Do you not know that the best preparation for Holy Communion is that operated in the soul by God Himself? Approach then with confidence, with complete abandonment to the state of poverty and deprivation in which it has pleased God to place you. Remain in it as though sacrificed, annihilated and unseen like Jesus Christ in His Sacrament, because He is there in a kind of annihilation. Unite yours to His.”