13 Accordingly, let us approach Mary confidently, wholeheartedly beseeching her by the bonds of her motherhood which unite her so closely to Jesus and at the same time to us. Let us with deepest devotion invoke her constant aid in the prayer which she herself has indicated and which is most acceptable to her. Then with good reason shall we rest with an easy and joyous mind under the protection of the best of mothers.
Source: Magnae Dei Matris (Vatican.va)