Honestly, I believe in both the people St. Mary the Mother of Jesus represents.  I believe in the teenager who crushed satan under her foot by believing God could do anything, even make a virgin pregnant with her own perfect savior and the savior of her people. 

From a homily of a strong priest:  He told of the law of the time: Mary when she was told of Elizabeth's miraculous pregnancy, by the Angel, it was to tell her where to run and hide.  Mary once pregnant, if she stayed in her village would be stoned before she gave birth if anyone found out.  The law was you could be killed until your pregnancy showed but once you were showing they could not kill you until you gave birth so only you would be murdered.  Mary ran to Elizabeth to hide her pregnancy until she was showing and her baby would be safe.  (in this - I was able to recall the Mary I fell in love with originally when I was a teenager. The flawed terrified virgin who believed perfectly and fearlessly for one perfect moment.)