finally i found this song---walk on from u2

And if the darkness is to keep us apart
And if the daylight feels like it's a long way off
And if your glass heart should crack
Before the second you turn back
Oh no, be strong

Walk on, walk on
What you got, they can't steal it
No they can't even feel it

Walk on, walk on
Stay safe tonight

You're packing a suitcase for a place
None of us has been
A place that has to be believed to be seen
You could have flown away
A singing bird in an open cage
Who will only fly, only fly for freedom

Walk on, walk on
What you got, you can't deny it
Can't sell it or buy it

Walk on, walk on
Stay safe tonight

And I know it aches
How your heart it breaks
You can only take so much
Walk on
Walk on

Home, hard to know what it is if you never had one
Home, I can't say where it is but I know I'm going
Home, that's where the heart is

And I know it aches
How your heart it breaks
You can only take so much
Walk on

All that you fashion, all that you make
All that you build, all that you break
All that you measure, all that you feel
All this you can leave behind
All that you reason, all that you care
It's only time and I'll never fill up all my mind
All that you sense, all that you scheme