Magnificat

Mary, the Mother of God, said that "my soul magnifies the glory of the Lord."  

Is this hubris?  Isn't the glory of the Lord infinite without magnification?  How can it be magnified?

And likewise with her role as intercessor-in-chief with respect to her Son.  If a prayer is more likely to be answered, coming from her lips, does this not imply that the love of Jesus for us (without intercession) is ratcheted down from the Infinite Love that He has promised us?

Should these be called "Marian Heresies?"