284. Part I of this work is treated of God, that He is Divine Love and Wisdom, and that He is Life; also that He is substance and form which is very and only Esse. Part II treated of the spiritual sun and its world, and of the natural sun and its world, and of the creation of the universe with all things thereof from God by means of these two suns. Part III treated of degrees in which are each and all things that have been created. This Part IV will now treat of the creation of the universe from God. The reason that these and the former subjects are treated is because the angels have lamented before the Lord that, when they look upon the world they see nothing but darkness, and among men, no knowledge of God, nor of heaven nor of the creation of nature, for their wisdom to lean upon.