The temporal world has a beginning and an end. And the angelic world has a beginning, but no end. Therefore, by Fludd's own divisions, he could not have reduced Christ to the angelic realm. They took him literally and not metaphorically. Again the image of Divine light is a central theme.
Fire represents the first cause.
Therefore, a physical manifestation such as a fiery star would represent to Fludd a metaphor for the Divine principles of fire and light. Fludd felt that God worked in the world through second causes and his depiction of their realms led his critics to believe that he equated the second causes as being identical with the first Cause. Craven quotes Hargrave Jennings from his book The Rosicrucians where he interprets Fludd's ideas on this subject. Robert Fludd wrote scientific, medical and alchemical books in addition to his philosophical writings. He was consumed by his work and this feverish pitch may have contributed to his death, the cause of which is not known.