After decades of seeing, healing and painting auric energy the term "prana" seems to say it best. My translation of the Indian Vedic term "Prana" is the lightenergyspirit particles that are immersing though all of us and all the universe, through both living beings and inanimate objects all the time.
This is what I am watching, how your presence field interacts with universal energy, how and where you recieve it and what you do with it.