Crowning Moment of Heartwarming: "Flag in the Ground," the story of a couple who is separated when the main character goes to America, but reunited through his hard work and determination. It may be the only happy song in Sonata's catalog.
"Blinded No More" is a rather uplifting song in the end- He gives the girl one more chance.
The cover of Bette Middler's "The Wind Beneath my Wings" also comes to mind, it is the only clearly uplifting song in Sonata's repertoire.
Flag in the Ground is pretty clearly uplifting. Being about a family escaping a life of poverty and serfdom in Europe to claim a life of wealth and freedom in midwestern America.