We can say that the main cause of this pestilence was and is the configuration of the heavens. In 1345, at 1:00 in the afternoon of March 20th, there was a major conjunction of three planets in the constellation of Aquarius. This conjunction, along with others like it and the eclipse caused a deadly corruption of the air around us. This signifies mortality and famine, and other things that we need not speak of here. Jupiter, being wet and hot, draws up evil vapors from the earth, and Mars, because it is hot and dry, ignites them. As a result, there were lightnings, fires, and deadly gasses in the air. According to the Paris Medical Faculty, what contributed to the pandemic?