The Faculty of Visualization
The sense of sight has been wonderfully endowed with a duplicate power which we have come to call the mind's eye. With this visual faculty we produce some very important mental operations. We must first become conscious of this faculty and learn to use it intelligently and then to broaden its scope and increase its power to deal with details.
Visualization is the mind's eye reproduction of an impression made by the sense of sight.
When the name of Abraham Lincoln is mentioned you can see his face in your mind's eye. Hesitate a moment and become really conscious of this reproduction of Lincoln's face in your mind. See the details of the picture, the deep set eyes, the furrowed skin, the sad expression, etc.