God alone is omniscient and omnipresent. Our Mother Mary is a servant of the Lord, and she does whatever his bidding requires. And should God require something of her this minute, the Father will adorn her with all necessary power and ability to accomplish his divine purpose, even as He sustains her existence and mine by His word of power.
I don't understand why others can't understand that it is God's power and God's love that empowers Mary and every Christian. Did Moses part the Red Sea? Yes, but not by himself. Did Matthew, Mark, Luke and John write gospels? Yes, but not without God. Did Peter heal the lame? Yes.....BUT NOT WITHOUT GOD!
And God will provide all the necessary power and ability WE need to accomplish his divine purpose if we but emulate Mary with an obedient and loving, yes. "let it be to me according to your word." Isn't that a comforting thought?