"Brook's journeys have been a constant search for deeper ways of discovering "what is the essence of theatre" and "what can theatre uniquely do?". In their hunger for meaning, they have also been spiritual quests"(the Independent online | Peter Brook: The grand inquisitor)

:: note :: . . . the title 'if' .. comes from Brook's The Empty Space . . . much of the theater created under his name falls short of the wonderful writing and theory he produces . . . a writer of practice is much to be valued . . . the models survive as beacons to guide the others . . . his gift was to articulate the work around him . . . he illuminated many others . . .