"Life is a dream" is an outstanding drama by Pedro Calderon de la Barca, which is a masterpiece of world literature of the golden age of the Spanish Baroque. In this tragedy, the author reveals philosophical and moral problems, raising questions about free will, justice and the power of fate. The action takes place in a fictional world, where a prophet prophesies to a king that his son will place the crown and the throne. The king decides to separate him from the world, frightened by the prediction. The son, Sigismund, grows up in prison, but then a fortuitous chain of circumstances leads him to the throne. In another dimension, their own bold plots are presented, filled with deep philosophical undertones. The play fascinates with its symbolism, richness of language, ornamentation of speech and expressive characters. "Life is a dream" is a book that gives readers the opportunity to think deeply about the meaning of life, the inner world of a person and his relationship with fate. Each paragraph of this masterpiece play should be considered as a reflection on our own life and the decisions we make.