When watching a theatrical performance what the audience sees on stage when the play is staged and ready is only a  small part compared to what happens until the moment when the show is set and shown to the audience. Even what happens behind the scenes during the show itself, all the rehearsals, long dialogues, reading them, going deeper and understanding, learning them. All this is accompanied by mutual support, criticism, mistakes, emotions, and all this together forms the result that can be seen on the stage.