A puppet, for example, is just a piece of wood, a couple of rivets, but put them together, and if you know how to do it, and the audience's imagination joins in with this, then a miracle will come out of that machine. That is what we and the audience do in the theatre - we create miracles in that space.
I wouldn't be happy to be a specialist. There are some very interesting artists in history who refused to be nailed down into a category, like Da Vinci or Jean Cocteau. You could say Cocteau was a great poet but also a film-maker, interested in theatre, sculpture, and could never identify with any of these forms exclusively.
The extraordinary context of 'Coriolanus' is that it's the first republic - it's the first attempt to create a society not ruled by a monarch. It changes the whole system, and you see how the establishment reacts to that, how they have disdain but play along - and you recognize this is the whole American republican system.