Book excerpt: “[An] incisive, personal mediation.” —New York Times Book Review Mark Doty has always felt haunted by Walt Whitman’s perennially new American voice, and by his equally radical claims about body and soul. In What Is the Grass, Doty effortlessly blends biography, criticism, and memoir to keep company with Whitman and his Leaves of Grass, tracing the resonances between his own experience and the legendary poet’s life and work.