"When country music star Thomas Rhett won the ACM Award for Single of the Year with "Die a Happy Man," his wife, Lauren Akins, was overjoyed. Her childhood best friend and now husband was being anointed the hottest new star in country music--for a song he had written about her. He was living his dream. Lauren was elated, but she was also wrestling with some big questions, not the least of which was, How can I live my own life of purpose? Lauren Akins...