Assumption – No one has access to the Almighty as His Mother has.
This is why the Blessed Virgin is called Powerful-nay, sometimes, All-powerful, because she has, more than anyone else, more than all Angels and Saints, this great, prevailing gift of prayer. No one has access to the Almighty as His Mother has; none has merit such as hers. Her Son will deny her nothing that she asks; and herein lies her power.