I think there is a mathematical affect as well. Julian was a math teacher, and there were several math references, including the girl on the phone repeating "calculus" over & over, before she died.
i watched a show yesterday on sir Isac Newton and how he spent his life using math to disect the greek myths into alchemy recipes. he also used math to try and disapprove the christian idea of the trinity. so i think there is a connection between math, science, nature, and the bible in the film.