“After I read and saw Blood Wedding I changed my ideas about what a play was. Ibsen, Chekhov, O’Neill, and even Williams fell away. Never again would I try to set a play in ‘living room,’ never again would I be afraid to have my characters talk in a nonrealistic way, and would abandon the realistic set for a greater dream setting. It was a turning point.”
In other words, what is known in the theater as "naturalism."