The days will come when the bridegroom is taken away from them; then on that day they will fast. (Mark 2:20)
The days when the bridegroom is taken from us have now come. He has not been entirely taken taken from us; he is really, truly, and substantially present, but in a hidden way. We wait for Him to come again, and celebrate the definitive wedding feast. St. Benedict tells us that our whole lives should be a Lenten fast, awaiting the Easter of eternal life, but since in our weakness we are unable to fast always, we should at least use the holy forty days to separate ourselves from attachment to earthly things, and long with holy joy for the coming of the bridegroom:
Although the life of a monk ought at all times have the aspect of Lenten observance, yet, since few have strength enough for this, we exhort all during these days of Lent to lead lives of the greatest purity, and to atone during this holy season for all the negligences of other times. This we shall do in a worthy manner if we refrain ourselves from all sin and give ourselves to prayer with tears, to reading, to compunction of heart, and to abstinence. Therefore during these days let us add something to our ordinary burden of service, such as private prayers or abstinence from food and drink, so that each one may offer up to God in the joy of the Holy Ghost something over and above the measure appointed to him: that is, let him deny his body in food, in drink, in sleep, in superfluous talking, in mirth, and withal long for the holy feast of Easter with the joy of spiritual desire.