Canal Song (End of Sentence)

I saw it leave your face
Its the only thing that I need
Its the only thing that I need so take it
I caught you and your canvas eyes
With the only thing that I need
With the only thing that I need but take it
Something you put in the waste Im craving
Its the only thing that I need
Its the only thing that I need but take it
If youd prefer it erased then bleach the place
Its the only thing that I need
Its the only thing that I need
But my heart it never breaks
It just beats on despite the ache
And the day I touch you and make you see
Broken well be
You and me
The birds fly south tonight
Theyve given up
Its the only thing that I need
Its the only thing that I need but take it
The skies grow dark beneath their wings
What does it mean?
Its the only thing that I need
Its the only thing that I need
But my heart it never breaks
It just beats on despite the ache
And the day I touch you and make you see
Broken well be
You and me