Does Our Lady purify our intentions?

Does Our Lady purify our intention s? For example, if one says a *Hail Mary* with mixed intentions (e.g., with the intention to please himself, though also with a virtual intention to please God), does Our Lady purify that prayer such that from God's perspective there are no self-seeking (impure) intentions in it? A pure intention is (Fr. Hardon, S.J., *Catholic Dictionary*): >The perfection of one's motive inspiring human action. An act is more or less pure depending on the degree of selfless love of God with which it is performed.