The document discusses four of Keats' odes: Ode to a Nightingale, Ode to Psyche, Ode to a Grecian Urn, and Ode to Autumn. It analyzes their themes of tragedy, humanity, symbols, beauty, mythology, religion, and love. Specifically, it notes that Ode to a Nightingale uses the nightingale as a symbol and deals with themes of life and tragedy. Ode to a Grecian Urn explores the contrast between the changing temporal world and the unchanging art depicted on the urn. Ode to Autumn represents the female goddess of autumn and considers themes of temporality, mortality, and change associated with autumn.