One of the reviews I read suggested that Closure was about Jesper & In Flames... I'm not so sure. I mean I can draw some parallels between the lyrics and the end of Jesper's time with In Flames, and the song title makes sense in that regard, but I don't think there's anything specifically pointing to that.
I haven't eaten
Drinking and been up for days
I'm walking round in circles with an endless headache
I feel misplaced and [?] back to square one
Our journey has begun, the future we outrun
But you will always be my brainchild of passion
I am the child from the stars
That got lost in the dark
Between heaven and hell
I am forced to live on
I am the cause when you sin
I am the demon you skin
But there is no more tears to beautify
This is my last goodbye
Getting ready to fight, we fight for our lives
We're buried in trenches, while bruising our minds
And every single argument's like walking on glass
Whatever the setback, I'll never look back
So this is how your life's supposed to be?
I am the child from the stars
That got lost in the dark
Between heaven and hell
I am forced to live on
I am the cause when you sin
I am the demon you skin
But there is no more tears to beautify
This is my last goodbye
[x3]
I dunno. I mean, a few of the lines maybe could be linked to IF but it seems like a stretch to say that's who the song is definitely about.