I love this quote by J. Hudson Taylor because I believe it is so true! We have not begun to tap the potential of power through prayer.
"The prayer power has never been tried to its full capacity. If we want to see mighty wonders of divine power and grace wrought in the place of weakness, failure and disappointment, let us answer God's standing challenge, "Call unto me, and I will answer thee, and show thee great and mighty things which thou knowest not!'" (J. Hudson Taylor)