It was due to His own infinite sanctity that God should suspend, in this instance, the law which His divine justice had passed upon all the children of Adam. The relations which Mary was to bear to the Divinity, could not be reconciled with her undergoing the humiliation of this punishment.
Dom Gueranger
Prayer To Our Lady Of Sorrows For Holy Church
O Mary, Mother of the Universal Church, Who didst consent to remain in exile upon earth after the Ascension of thy Divine Son, and for long years to be deprived of His visible presence, that thou mightest be the guide, the Mistress, and the loving Mother of the infant...