Very rare that a thrash band can hit me so hard, but, having lost a couple of friends and bandmates to depression and suicide this song always makes me cry.
If you want to know what the French means in the chorus, here's the translation:
To all the world,
To all my friends,
I love you,
I have to leave.
According to Dave Mustaine, the song is about losing a loved one and they end on a bad note. They wish that they could say something to them. So this is an opportunity for the deceased to say something before they go.
And of course, I love Marty Friedman's guitar work as always. Really makes this song beautiful.