http://www.lyricsmania.com/lyrics/kate_voegele_lyrics_15408/dont_look_away_lyrics_45047/its_only_life_lyrics_487471.html
How can you say, "It's only life"? No big deal, just your life, not a top priority or anything. What more could it possibly be? What else do you have, but your life?
Messages (1)
I think in that context it just means "it's not the end of the world."