who am I ever To imagine I could know Such a marvelous business?

On the beach, at dawn:
Four small stones clearly
Hugging each other.

How many kinds of love
Might there be in the world,
And how many formations might they make

And who am I ever
To imagine I could know
Such a marvelous business?

When the sun broke
It poured willingly its light
Over the stones

That did not move, not at all,
Just as, to its always generous term,
It shed its light on me,

My own body that loves, 
Equally, to hug another body.

[Mary Oliver, from Swan: Poems and Prose Poems]