Pope Shenouda III
 
 
 Days of fasting days are sacred and  man lives them in holiness.
  During these days, the mind, heart and body must  also be sacred.  Fasting is a period of training during  which you  attempt to approach God and at the same time, sin pulls you  away.  Therefore, you must eliminate sin through repentance to draw close  to  God.
  While  fasting, your body abstains from  food, and  your soul abstains from every earthly and worldly lust, and  all  passions that pertain to the body. Through repentance therefore, you   approach God. Ask yourself, are you fasting this way?