I'm looking for a word that describes the invisible connection between seeming unconnected things. Like the area below the surface connecting an island chain, but that could potentially relate to people/ relationships as well. The closest things I've thought of is entanglement.
ie. a single work for degrees of separation
looking for something with more of a pulse than tie or bond. Like synapse, but not just for nerves.
Sentence: Everyone in the room was working independently, but could feel each other's humanity through _____.