Susan Bono’s review of “Swimming Grand Canyon and Other Poems” by Rebecca Lawton. I am not a person who knows rivers, although some part of me yearns to be. That’s why I’ve been a fan of Rebecca Lawton’s writing ever since I read her essay collection, “Reading Water: Lessons from the River.” She takes me to those places in myself. In “Swimming Grand Canyon” she shows me her love for rivers with lines like, “The water has no bones/but carries things we love.” I expected this and was grateful for it. But I soon became aware that these poems are channeled through the hard gates of life, and that is what sticks with me. She warned me early on in “It’s Like Life” when she wrote, “You think you’ll jump on/and just ride.” Of course, it’s always more complicated than that, and I realized as I read on how much…