In the spirit universe, all entities are separate spiritual entities that have an urge which they must follow during their life in the universe, but which can never be satisfied for long. This applies both to photons, atoms, molecules, protozoa and all other living organisms like humans.
All entities in the spirit universe represent Ur-Ideas. Simple matter entities represent simple Ur-Ideas. Complex matter entities represent complex Ur-Ideas that are composed of different Ur-Ideas. The explanation of quantum entanglement and gravity is trivial in the spirit universe.
In this introduction, I try to describe the most important relationships. All physical laws about matter can be represented by mass reactions of many individual spirit entities, which perceive and react to all other spirit entities clock by clock.
With each new clocked perception, each entity must decide how to live up to its individual urge understanding by changing its own state of consciousness accordingly.