The invention of theatre

What is "the invention of the theater"? How does it happen? What "incredible heights" shall rise from the artist to the audience in the hall forgot that what happens on stage is just a game? Famous theater Director mark Rozovsky writes about it in his book. That "if an ordinary person that is either created or had created, he thereby closer to God." And that we need to believe in yourself. Little feel Mozart continuously - only the one who so loved the radiant life, could write a "Requiem".