Complex sentence: The Christian religion had begun as spiritual protests against the conditions of life wherein lower classes believed that they were supernaturally favoured over the richer ruling classes, and had deteriorated from its original goals into a kind of false consolation for people who accepted their subjection.
Split into simpler sentences: The Christian religion had begun as spiritual protests against the conditions of life, wherein lower classes believed that they were supernaturally favoured over the richer ruling classes. However, it had deteriorated from its original goals into a kind of false consolation for people who accepted their subjection.