Joel 2
15 Blow the trumpet in Zion, declare a holy fast, call a sacred assembly. 16 Gather the people, consecrate the assembly; bring together the elders, gather the children, those nursing at the breast. Let the bridegroom leave his room and the bride her chamber.
 
  When I first read this I never really thought much about fasting, It was something that thought yeah I'll do it, but I never really sewed into it.  Now when I read this I see the part about "Let the bridegroom leave his room" we all know that Christ is the bridegroom.  If fasting can bring Christ from his room, and bring his eyes our way than fasting is pretty powerful.  I think we all need to open our eyes to the concept of fasting even if it's just a day or just a meal.