Universal Energy! Isn't that in simple terms what "God" is?
Energy that comes from all around us and is within everything, not just on this Earth but also the moon, the stars the whole Universe. It is there to be used and tapped into when you need it, you can focus it. Every thought form is an energy so although there are different "levels" of the Universal energy it all makes up the whole energy of the Universe.
Divine energy is the highest level in which we all wish to become, isn't this why we have to live mortal lives, to progress spiritually, to become closer to the Divine?
Sorry I know I am rambling but we all know that energy itself has to have a positive and receptive/negative "feed", it has to have it or there will be no energy in the first place, and lets face it, without it we have no earth - it has to spin somehow right!
Then, where the God/Goddess, Lord/Lady comes into play is actually giving the positive and receptive a name as most people need someone to call rather than something - postive being Male and receptive being Female. So is this itself the Divine, the energies combined?
I feel that the Dieties represent all the forms of energy that can be focused from the Universe and as I said before, it can be far easier to invoke Pan for example or Diana as a "Godlike person" rather than as a specific energy force.
It's 6am here so if I have just spouted complete and utter bollocks, please say
I agree with the connection your making.with the universe-lord/lady- deities being different aspects of the universe. The name just helps tap into the energy better I think.