Well, it s a spiritual thing and spiritual things take many different forms for those who are spiritual beings. Whether embodied or not. There are spirits that never had a body. There are spirits that come and go from the body form and after you are through with all the lessons of the body you will again move into the lessons from a non-physical plane. Light then is that energy which can turn things into matter and create things of matter and things beyond the thought.
Light IS like the action of the thought.
Far greater than you could understand. It is the action of The Creator. Well, there may be spiritual things that die, but not in my level. It is an object that you sometimes confuse with spiritual things. Well, you put it very nicely.