An explanation of the title

In Hebrews 11:13-16, God calls His people exiles, people who do not belong where they are.
"These all died in faith, not having received the things promised, but having seen them and greeted them from afar, and having acknowledged that they were strangers and exiles on the earth. For people who speak thus make it clear that they are seeking a homeland. If they had been thinking of that land from which they had gone out, they would have had opportunity to return. But as it is, they desire a better country, that is, a heavenly one. Therefore God is not ashamed to be called their God, for he has prepared for them a city."
These verses were the inspiration for a song by Dustin Kensrue and the band Thrice who wrote a song called In Exile.

I am in exile, a sojourner
A citizen of some other place
All I've seen is just a glimmer in a shadowy mirror
But I know, one day well see face to face

I am a nomad, a wanderer
I have nowhere to lay my head down
There's no point in putting roots too deep when I'm moving on
Not settling for this unsettling town

My heart is filled with songs of forever
The city that endures when all is made new
I know I don't belong here, I'll never
Call this place my home, I'm just passing through

I am a pilgrim, a voyager
I wont rest until my lips touch the shore
Of the land that I've been longing for as long as I've lived
Where they'll be no pain or tears anymore

My heart is filled with songs of forever
The city that endures when all is made new
I know I don't belong here, I'll never
Call this place my home, I'm just passing through
  
This song has been a huge blessing to me and every time I hear it I am reminded that this world isn't where I belong, that my home is in Heaven and that this world offers nothing of eternal value.
 In Exile by Thrice