I believe that the theme that both 'Finale Salute' and 'Do not go gently into the good night' is that fighting death is an honorable thing to do. The theme in 'Finale Salute' is to die fighting for your country is an honorable thing to do. In the poem 'Do not go gently into the good night' the theme is to not give up the fight. So this is the common theme. I also thought I might add the fact that this inspired me, so now when my time comes, I know that I'm going out swinging! =]