2217. This all shows how crude still the mental images of angels are in comparison to the Divine ones of the Lord, which stream in and impart life, and the ability to think, which can be likened to the tissues and arteries incalculably many in number. For each combination of these is in turn made up of tissues and tiny vessels still more refined. What stream in from the Lord are the vital essences, for it is these that flow through the tissues and tiny vessels.