While pro wrestling is often described simplistically as a "soap opera for males", it has also been cited as filling the role of past forms of literature and theatre; a synthesis of classical heroics, commedia dell'arte, revenge tragedies, morality plays, and burlesque. The characters and storylines portrayed by a successful promotion are seen to reflect the current mood, attitudes, and concerns of that promotion's society (and can, in turn, influence those same things). Wrestling's high levels of violence and masculinity make it a vicarious outlet for aggression during peacetime.