If I were to hazard a guess, I would say that some mainstream Christian sects believe in a God as a transcendent being (i.e. not a person or alien) but not a generator of miracles. In other words, the path is to somehow intuit God without requiring such a being to be a magician or blow your mind with supernatural phenomena. If that was the way God reached humans, then faith would be less necessary - that is one popular theological view. Contemplation rather than miracles. So, and this is a subtle distinction for some people, a universal being could be real and transcend the ordinary physical world that is the domain of science, but not a being that generates supernatural events. On such a speculation, I would have to remain agnostic in the original meaning of that word: I have no knowledge of the true nature of such a hypothetical being. Agnostic means literally, "without knowledge."