I think you guys are right, this is about her saying that life is short and that whatever we do in it, we'll all melt, one day. It's a sort of reminder to live life to the fullest.
However, despite the lyrics, I also feel it is a hopeful song from the way she sings it. "Oh, one day you will go away from this / Oh, one day you will know we're men of snow, we melt one day" sounds very hopeful and encouraging, like one day, things will be better, you'll get through whatever sadness you're feeling.
I think you guys are right, this is about her saying that life is short and that whatever we do in it, we'll all melt, one day. It's a sort of reminder to live life to the fullest.
However, despite the lyrics, I also feel it is a hopeful song from the way she sings it. "Oh, one day you will go away from this / Oh, one day you will know we're men of snow, we melt one day" sounds very hopeful and encouraging, like one day, things will be better, you'll get through whatever sadness you're feeling.