Keys - Simple Lyrics

This song is simple
This song is true
Made with sincerity
Of that I'm sure
This song is delicate
Spun with 3 chords
It was my intellectual property
But now it's yours

I couldn't sleep last night
Too busy dreaming
I made a journey to the centre of my mind
There was a room there
Made out of glass
I found a shoe box with these words in