An inventory of our most basic irreducible assumptions and the role they play in determining belief and behavior, combined with the minimum requirements for an entity to be considered a person, imply that this assumption set is a single ideal personal entity who, given our purposive nature, is treated as God, with just as much objectivity, omniscience, authority, universality, obligation relations, and other ultimate characteristics, as any traditional idea of a personal God. And we do this necessarily.
As an example, we don't wake up in the morning wondering whether reason is going to be down, like we might wonder about our computer. We're going to approximate what it indicates and we are completely non-controversial about the authority of what it reveals to us. Furthermore, we merely need to contemplate these ultimates of mind such as reason, formal logic, and the rule-set of an ordered context of reality, in order to discover an endless stream of new knowledge when applied to our experience of the world. Consequently, there is some sense in which these ultimate fulcrums of thought actually communicate to us if we only think about them, just as the God of the Bible wants to guide believers into all knowledge. Lastly, the necessity of our valuing of these things implies both purpose and value, which are equally ultimate in this comprehensive set of guiding operational principles.