Basil is the king of Poland, who hides his son Sigmund in a tower for fear that an oracle may come true. When Sigmund wasn’t yet born he figured out with the help of astrology that his son would kill his wife and cause death and destruction around himself. When the first prophecy turned out to be true - the wife of the king died giving birth to Sigmund - Basil decided to hide him in a tower. Once, he takes him out while Sigmund sleeps to see what kind of man he is, and finds out that his son is authoritarian and hostile like a wild beast. Then Basil takes him back to the cell and makes him believe that everything that happened was just a dream. In this way the name of the play is used directly for Sigmund, but he takes it allegorically. The life he is supposed to lead as a prince can be only his dream. After that, civil war begins, and Sigmund is out to fight, thinking again that he is dreaming, and now he is a totally different man from what he was, because he doesn’t want to wake up and wants his dream to be sweat and friendly. Thus, Calderon, one of the great playwrights of the Renaissance, made the play very philosophic with the help of allegory. So that while reading several questions arise: What life is? Who are we? Is life a dream? Besides the philosophical site, it’s very hilarious classic comedy that is read smoothly without a pause.