If there is such thing as “spirit” underlying everything, then it can be nothing other than a form of interaction…which is fundamental. In order for something to be part of this universe means it must interact in some way with this universe. I propose that what can be called “spirit” is none other than the natural forces (fundamental interactions) behind all we know to exist, not something supernatural. Those fundamental forces…gravity, electromagnetic, strong nuclear, and weak nuclear, quite literally “animate” everything that exists in our universe. Those fundamental forces ARE the "spirit" of the universe.