The Day I Knew You'd Not Come Back

The day I knew you’d not come back
I built this castle out of glass
But I could never understand
Where the windows and walls began and end
No, I could never understand
Where the windows and walls began and end
I built this colonnade of sand
Stretched out like fingers from my hand
But with the waves coming in
In the morning I had to build again
And with the waves coming in
In the morning I had to build again