Imagination as a Source of Knowledge

For ancient and medieval thinkers, imagination and theology went hand-in-hand as a way of understanding the world.  During the Reformation, however, imagination came under increasing suspicion as a source of knowledge as Catholics were accused of devising man-made inventions in the name of doctrine and deception, and Protestants were accused of following the individual imaginations of reformers over the long-established teachings of the church.  Yielding to reason and evidence, imagination took the back-seat.  Five hundred years later, we will take another look.  What role does imagination play in understanding the world, whether in theology, philosophy, politics, science, or society?  In addition to reason and imperial evidence, can we consider imagination as another source of knowledge?