There's a painting in the Oval Office that Bush calls one of his favorites. He has a lovely story to tell about it. In Bush's story, the horseman in the picture is going hell-bent for leather to spread God's word.
In truth, it's a bit more complicated. The picture is by a German-American illustrator and was used to illustrate a number of stories over the years, one of which may well have featured missionaries on horseback. But it was originally created as an illustration for a story about a slick-talking horsethief, and depicts his flight for his life at the head of an angry mob.