Fill In The Valleys of Fear & Discouragement
The valleys which the glorious St. John wants us to fill up are none other than fear which, when it is excessive, leads to discouragement at the sight of our sins. Fill up the valleys; that is, fill your heart with confidence and hope because salvation is near at hand. [Lk. 21:28; Rom. 13:11]. The sight of our great faults brings with it a certain horror and shock, a certain fear and terror which unnerves the heart and often leads it to discouragement. These are the ditches and valleys that must be filled up for Our Lord's coming.
St. Francis De Sales The Sermons of St. Francis de Sales For Advent & Christmas pp.45-46