From a Christian point of view of course we do want a peaceful world, and I think September 11 did actually make people aware not only of vulnerability and how transitory life is, but there are forces of good and honor and justice which speak to us of God and his love for us.
He wasn't really Method but he believed that when you did a role there were lots of things you could do with your co-star in order to create the right environment. You known, if you were supposed to be in love, to create that feeling between the two of you.