We are as mystified about the nature of consciousness as we are about the nature of the physical world,
We can only experience the physical world through the medium of sensory experience, but its existence is a better way of explaining its constancy in the large scale world, than dependence upon a God who has to mediate every action.
There is a difference in the nature of the world when we analyse it at an atomic and macroscopic level, but there is also a difference in dreaming and the waking state.
Even if you accept the premise that the world of conscious experience is all that exists, why would that necessitate a God?
Consciousness is a phenomenon that is expressed and experienced. We express ourselves while trying to make ourselves to be understood by others. we also express ourselves through our own creation. Therefore we cannot deny, that we express consciousness. We also experience consciousness using our sensory organs, which the Mind constructs the reality we wrongly perceive as objective, and out there. Since we use our mind to express and experience consciousness, it follows therefore, that there must be a mind, that is expressing the consciousness out there, which we have been perceiving wrongly as objective but which we know realize that its our subjective tools which are imposing the objectivity. This Mind, which has projected the reality we perceived as objective, which we now realize that its Unity, must also be in us. Therefore, there is a Mind in us, who is God, who desires us to experience Him in Unity, by affirming the Unity we have confirmed from QM. Therefore God in Us waits for Us, to acknowledge Him, by expressing ourselves as One Spirit, United, and True.