I like your analogy and do have a similar view in that the total consciousness level of all humans combined, at any given point in time, creates a separate universe of our own. This total consciousness level has its own rules and principles created by us which also evolves over time. It shapes all of our belief systems, actions, behaviors, etc. throughout various human civilizations in history.

It operates almost like a mind of the entire human race just hovering above all of us. This concept is pretty abstract but like you said, at any given point in time this total soul may not exist physically, but it does exist conceptually in our exclusive reality and it too constantly evolves together with us.