I don’t know if visualisation is the right word and if the mashal I’m using is the best one but I saw a good animated video clip on it and it is pretty good. Anyhow I relate to Hashem as this Supernal Being Who provides life for everyone and is the life force of everything although the everything isn’t Him. But all of that pales and is nothing compared to Who He really is which is far above anything related to the world (like you wouldn’t praise a king as possessing 100 pennies) and nevertheless He wants us to praise Him with what we appreciate and our puny concerns from our very limited viewpoint.
Anyhow the visual I for the concept would be energy or electricity which is present everywhere, is manifest in lamps and is their essence and being without them being electricity themselves…