"When I say this book is a love story, I mean it is about things that cannot be gotten over--like this world, and some of the people in it." In 1819, the poet John Keats wrote six poems that would become known as the Great Odes. Some of them--"Ode to a Nightingale," "To Autumn"--are among the most celebrated poems in the English language. Anahid Nersessian here collects and elucidates each of the odes and offers a meditative,...