Some doctrines like predestination, original sin and the Immaculate Conception which some posters have problems with, arise from people at different times trying to understand concepts beyond understanding or beyond the understanding of people at the time they were developed. Trying to explain the inexplicable. And of course you can 'believe' facts. Not all facts are concrete and others we accept because they make sense, or appear to be true. And yes, who did light the touch paper for the Big Bang? The more scientists uncover, by trying to explain the inexplicable, the more the innate order of the universe appears.