“Listen,” writes Mary Oliver, urging the reader to put aside questions and doubts as she describes terns wheeling over ocean waves, “maybe such devotion, in which one holds the world/ in the clasp of attention, isn’t the perfect prayer,/ but it must be close.” With Devotions, Oliver, who died on January 17 at age 83, offers a record of her attentiveness to the world in over 200 poems selected from more than 20 books.