I think the same way about theatre, you go out there and you are creating a world for a moment that can actually have a real impact on people, present some kind of story that gives you something to think about when you walk away, feeling enriched - if it works out well.
It has been suggested at various times that I should start an operation in the United Kingdom but - bearing in mind my age and medical history - I think this would be not a very sensible way to go forward.