... in the case of trees and certain other forms of plant life, they already have a structure that expresses perfectly a timeless life in more than three dimensions. Being motionless, the only movement is that of their growth, which leaves a solid trail of wood behind in much the same way we ourselves are leaving a long stream of ghostly images. The tree's shape is its history, each bough the curve of a magnificent timestatue which I can assure you that we folk Upstairs appreciate just as enthusiastically as do you humans.