Modelling
Brain controls the body
brain models outside world
brain updates model by testing
brain updates model by experience
brain models its model of outside world
brain updates its model of its model by testing
brain updates its model of its model by experience
brain retires.
Notes by the author
suspect that different levels of consciousness are in fact different levels of modeling in the brain. Perhaps the child's model doesn't get modified (too slow) but gets replaced, then submerged for example.
I also suspect that following a bereavement or severe loss, the pain (grief) we feel is due to the hard work required to modify or change the current model of the world.