One of O, The Oprah Magazine’s Ten Best Books of the Year! The New York Times bestselling collection of essays from beloved poet, Mary Oliver.   “In the beginning I was so young and such a stranger to myself I hardly existed. I had to go out into the world and see it and hear it and react to it, before I knew at all who I was, what I was, what I wanted to be.”  So begins Upstream, a collection of essays in which revered poet Mary Oliver reflects on her willingness, as a youn