To Your Scattered Bodies Go, 1971 - sci-fi novel & the book in the Riverworld series of books by Philip José Farmer. Won a Hugo Award for Best Novel in 1972 at Worldcon. The title is derived from the of the "Holy Sonnets" by English poet John Donne.
One minute, down and out actor Lorenzo Smythe was -- as usual -- in a bar, drinking away his troubles as he watched his career go down the tubes. Then a space pilot bought him a drink, and the next thing Smythe knew, he was shanghaied to Mars.