What Is the Miracle?

The course in miracles says everything's already happened. Time and space are illusions of consciousness, albeit persistent ones. The only place where eternity intersects linear time is in the present. And I'd love to just get your expertise on this subject... It's also one of the things that seems to be very much loved by God. One of the lessons in the course is that if there is a perfect separation between heaven and hell then we're already there.