Rilke's Sonnets to Orpheus appear simple, even casual, at first reading, but have a content which resonates far beyond the familiar legend of Orpheus and Eurydice. They take in the Singing God and his beloved Eurydice; legend in general, along with time, flight and change; architecture, music and dance; animals, plants, flowers and fruits. The ten letters to the officer-cadet Franz Xavier Kappus, were written between 1903 and 1908.