PRAYER releases energy as certainly as the closing of an electric circuit does. It heightens all human capacities. It refreshes and quickens life. It unlocks reservoirs of power. It opens invisible doors into new storehouses of spiritual force for the Person to live by, and, as I believe, for others to live by as well. It is effective and operative as surely as are the forces of steam or gravitation.
~ from THE WORLD WITHIN by Rufus Jones