Orion's Cartwheel by Lawrence Winkler

In the summer of 1980, a maverick young doctor gave it all up, to hitchhike around the world. The first arc he carved with his thumb stopped a little red pickup that took him over the horizon. Like his mythical hunter companion, Orion, he was on a vision quest, propelled toward the dawn to have his sight restored. This is the story of that five-year odyssey to discover his Destiny.