Quoted from Gryszzz:Gweem the song isn't nearly as depressing as the book that it was based on : "Johnny Got His Gun" by Dalton Trumbo.
Not many metal songs I can remember that motivated me to read the book the lyrics sprouted from. Harrowing and unforgettable novel.
"One" also made me read Johnny Got His Gun.
Only other time that's happened was that Mastodon's Leviathan made me read Moby Dick, and wow, was I glad I did.
"Fade to Black" is my favorite Metallica song and if that's not depressing, I don't know what is.
But it's a Metallica pinball machine. What do you expect?