John Bunyan

He was imprisoned in an English jail in Bedford in 1675. There he wrote the greatest book of his life "Pilgrim's Progress" - read by more people than any book except the Bible. He has been quoted as saying: "I was at home in prison, and my great joy led me to sit and write and write." And the darkness of his captivity became a wonderful dream to light the path of millions of weary pilgrims.