It seems that as time moves on the Church has lost more and more of God's doctrine. We are told that when the bridegroom leaves, the Church should fast. "And Jesus said unto them, can the children of the bridechamber fast, while the bridegroom is with them? As long as they have the bridegroom with them, they cannot fast. But the days will come, when the bridegroom shall be taken away from them, and then shall they fast in those days" (Mark 2:19-20 KJV). This book provides information on why and how to fast. In addition, testimonies on marvelous works that God wrought through fasting.