Change the Image
According to Romans, hope is actually looking at something you can’t see. How do you do that? You do it by looking at the promises of God in the Word until with your inner eyes—the eyes of your spirit—a picture is formed.
For example, one of the hardest things I ever had to do was face the fact that the inner image I had of myself physically was fat. It didn’t matter how hard I tried to change, it wouldn’t go away. I was always on a diet. I must have lost (and regained) hundreds of pounds over the years.