The absence of fasting is indicative of our comfort with the way things are. No one fasts to express how content they are. People only fast out of dissatisfaction. “The attendants of the bridegroom cannot mourn as long as the bridegroom is with them, can they? But the days will come when the bridegroom is taken away from them, and then they will fast” (Matthew 9:15). The absence of fasting is the measure of our contentment with the absence of Christ.
– John Piper A Hunger For God (Wheaton, Il: Crossway 1997), 93.