A Backbone by Night

I've recently been working on a cycle of poems, entitled Of the Women. The following is the first piece,A backbone by night:

I sit idly on the grass
And watch the night sky reflecting on your back
Your blue back under the moon
I watch the exploding universe upon your narrow frame
As you exhale, nebulas collapse in on one another
Take in breath and restore the shape of things
As long as your spine is blue
I know the safety of all life
And can stare at the terrific expanse of your ribcage
For as long as the Night lasts