of inestimable worth

Since we normally have only little things to offer him, let us pray about the poor value of Mary’s offering to the Lord, those two turtle-doves. Learn to join your poor offerings to those of Christ. Join your prayers with his prayers, your tears with his tears, your fasts with his fasts. In this way you will take something of little value and give it an infinite worth. One drop of water by itself is nothing more than one drop of water. One drop of water poured into a cask of wine becomes something of greater value. This is the way it is with our human labours. By themselves they are of small value. Yet when they are joined with the labours of Christ they acquire an inestimable worth (Fr. Luis de Granada, Life of Jesus Christ, ch. 7).