7. The distinction between these degrees cannot be known unless correspondence is known. For these three degrees are altogether distinct from each other, like end, cause, and effect, or like prior, posterior, and postreme; yet they make one by correspondences, for the Natural corresponds to the Spiritual, and also to the Celestial. What correspondence is may be seen in Heaven and Hell, where the subject of the correspondence of all things of heaven with all things of man has been treated of (n. 87-102); and also the correspondence of heaven with all things of the earth (n. 103-115). The same will further appear below, from examples adduced from the Word.