As a pillar of its religion of progress and cult of technology, our society cultivates its great illusion, which is also related to time.
https://books.google.ru/books?id=gMoOEA ... on&f=false
I wonder, what part of the sentence the underlined clause is supposed to describe in a nonessential way--(being) a pillar of our society's religion of progress or our society's cultivating its great illusion.