Spirit/Energy

I have met two people separately who describe their understanding of what Spirit is as energy. They describe it as what holds molecules together, what connects all matter, and as the force of life. This is interesting as it is a view of spirit with which I am not familiar. I do not yet know of any group of people proclaiming this view and so I will be interested to explore it. These two people do not know each other and were not present as one another were describing their thoughts.