Nice story, but we do not need Mary to do that. The Holy Spirit was sent by God and knows the real meaning of your heart and prayers. God is not a mortal king who will reject your prayers because they aren’t pretty enough. If you are a parent and your small child comes to you with a present of slightly smashed dandelion flowers, do you reject them because they are just dandelions and not very pretty? Of course not, and neither does your heavenly Father.
Romans 8:25But if we hope for what we do not yet have, we wait for it patiently.
26In the same way, the Spirit helps us in our weakness. We do not know what we ought to pray for, but the Spirit himself intercedes for us with groans that words cannot express. 27And he who searches our hearts knows the mind of the Spirit, because the Spirit intercedes for the saints in accordance with God’s will.
I didn't catch the part where he said we "need" Mary to do that.