We all know that our body and brain give off energy but did you know that some of that energy is light?  Don't try to see it by getting in a dark room with all the lights off.  It's not enough light to register on your eyes, but it can be detected and measured by sensitive instruments.  
    Scientists have shown that this light increases when a spiritual healer is healing.  It is also affected by our emotions.  Some thing that the light is actually generated by our thoughts.  
    In addition to light, we give off magnetic and electrical energy.  We also absorb energy from others or, more accurately, we exchange energy with others.  This energy exchange is what causes the quantum concept of entanglement because the energy becomes synchronized.   And energy carries information, so when we exchange energies with others we are also exchanging information.  So even when we don't say anything, we are exchanging energy and information with everyone we meet.  Of course, when we meet someone we know and especially someone we love, the exchange of energy and information is greater.  We just don't realize it because it is all subconscious, although we may feel "energized" after a good transfer of energy and information, and somewhat tired after a bad one.
    This energy exchange is not strictly limited to humans.  We exchange energy and information with animals, plants and even inanimate objects.  This exchange of energy and information means that we essentially have access to all of the energy and all of the knowledge in the universe.  That may help explain the bumper stickers you see in Reno from the Jamilian University that read "God is Light".  A simplification, but you can only put so much on a bumper sticker.