For me, it's got to be Bruce's

'When I Cannot Sleep At Night'

The touching emotion inside that song moves me so deeply, every time I hear it.

"...When the words get in the way
And my soul feels all undone
When I don't know what to say
Not to God or anyone
I turn my head up to the sky
And stare at outer space
It's then I'd trade the Universe
Just to touch your face
When the words get in the way..."

(Taken from 'When I Cannot Sleep At Night' by Bruce Murdoch)