The main character, Gene Moore, is shown how much of his identity is wrapped up in his career and potential in that career. When he comes home from war no longer able to see himself as a baseball prospect, he isn't sure who he is. This is thoroughly reinforced every time one of his acquaintances identifies him by baseball or inquires about his status. How much of our identity and worth is wrapped up in our job title or the one we are aspiring to?
Who is willing to be satisfied with a job that expresses all his limitations? He will accept such work only as a 'means of livelihood' while he waits to discover his 'true vocation'. The world is full of unsuccessful businessmen who still secretly believe they were meant to be artists or writers or actors in the movies.
The American College of Sports Medicine found that the productivity of people after exercise was an average of 65 percent higher than those who did not exercise. If I have something that's really bothering me, so much that it almost hurts my head to try to sort it out, I always find the solution in a puddle of sweat! Intense exercise is like taking a magic pill that gives you the ability to solve problems like a superhero.