Mary and Original Sin

Mary and Original Sin (II) By original sin we mean, as I have already said, something negative, viz., this only, the deprivation of that supernatural unmerited grace which Adam and Eve had on their first formation, —deprivation and the consequences of deprivation. Mary could not merit, any more than they, the restoration of that grace; but it was restored to her by God's free bounty, from the very first moment of her existence, and thereby, in fact, she never came under the original curse, which consisted in the loss of it. And she had this special privilege, in order to fit her to become the Mother of her and our Redeemer, to fit her mentally, spiritually for it; so that, by the aid of the first grace, she might so grow in grace, that, when the Angel came and her Lord was at hand, she might be "full of grace," prepared as far as a creature could be prepared, to receive Him into her bosom.
	John Henri Newman Letter to Pusey, 1866