Simple Bm, D, G progression through the entire song. Just follow the chord changes.
I believe in gravity
I can feel it pulling me
Even though I've never seen
I still believe
I have never seen the breeze
But I have seen the trembling trees
And I have never seen the time
But that doesn't mean it doesn't fly by
I believe in gravity
I can feel it pulling me
Even though I've never seen
I still believe
I have never seen You
Except in the sky, the stars, and the moon
And I have never heard You speak
Except in the rain, the wind and the sea
I believe in gravity
I can feel it pulling me
Even though I've never seen
I still believe
I believe in You
I believe in You
I have never seen Your face
But I believe You're always in the breeze
http://www.theineloquent.com/