225. The middle of the tree of the garden' means natural good containing some perception, which is called 'a tree'. This also becomes clear from the garden in which celestial man lived, for everything good and true is called a garden, with variation depending on the person who tends it. Good is not really good unless its inmost is celestial, from which, or rather from the Lord by way of which, perception comes. This inmost is called 'the middle', as also in other parts of the Word.