Life Is a Dream (Spanish: La vida es sueño [la ˈβiða es ˈsweɲo]) is a Spanish-language play by Pedro Calderón de la Barca. First published in 1635 (or possibly in early 1636) during the Spanish Baroque period (NADV1), it is a philosophical allegory regarding the human situation and the mystery of life. The play has been described as "the supreme example of Spanish Golden Age drama". The story focuses on the fictional Segismundo, Prince of Poland, who has been imprisoned in a tower by his father, King Basilio, following a dire prophecy that the prince would bring disaster to the country and death to the King. Basilio briefly frees Segismundo, but when the prince goes on a rampage, the king imprisons him again, persuading him that it was all a dream.