I think it is because most people right now doesn’t have an objective experience of the essence of our being, and an experience of it as a continuous revelation in communion to nature in both places and people, instead of in history and its events, that causes them to have this compulsive need to always philosophically try to explain everything. To search for external explanations.
And by trying to create a materialistic, or intellectually fixed reality, placing our spirit in concepts and ideas, we really miss out on having an ongoing living sense of reality based on experience in terms of our relationship to life.
In this context, belief is not something that is available to me as a replacement for experience.
And by looking at the world, it does not seem to be working there either.