Prayer is where our thought of God passes into action, and becomes more certain than thought. In all thought which is not mere dreaming or brooding there is an element of will; and in earnest (which is intelligent) prayer we give this element the upper hand. We do not simply spread our thought our before God, but we offer it to Him, turn it on Him, bring it to bear on Him, press it on Him. This is our great and first sacrifice, and it becomes pressure on God. We can offer God nothing so great