Rainer Maria Rilke is arguably the most important modern German-language poet. His New Poems, Duino Elegies, and Sonnets to Orpheus are pillars of 20th-century poetry. Yet his earlier verse is less known. The Book of Hours, written in three bursts between 1899 and 1903, is Rilke's most formative work, covering a crucial period in his rapid ascent from fin-de-siècle epigone to distinctive modern voice. The poems document Rilke's tour of Russia with Lou Andreas-Salomé, his hasty marriage and fathering of a child in Worpswede, and his turn toward the urban modernity of Paris. He assumes the persona of an artist-monk undertaking the Romantics' journey into the self, speaking to God as part transcendent deity, part needy neighbor. The poems can be read simply for their luminous lyricism,.