Let us not imagine, however, that to secure the special protection of the Mother of God our prayers must needs be very long; much will depend upon circumstances; but let us not forget the advice which Blessed John Berchmans gave to his companions at his death: "The least homage is sufficient, provided it be constant." Hence, what we have once resolved to do in honor of our blessed Lady must never be put aside or neglected, but must be faithfully persevered in, daily, until death."
-- The Little Book of Our Lady