The psychological analogies of St. Augustine and the angle/triangle analogy are the best ones I've seen by far. Let's see how this video explains the analogy it's presenting (probably psychological).
@@Malygosblues Imagine someone goes about their daily life at home as usual. Then, they use a time machine to travel back to the first second of that day. Then, after the day is done again, he time travels back one more time. What you would have is the same being from 3 different times co-existing. Not only that, but these instances of the same being can even form a small relationship/interact with one another, which is analogous to the fact there's a divine relationship in the Trinity. The negations you have to make are things like the fact these are 1 being 1 person 3 instances, not 3 persons like the Trinity. Second, these are different actualities of the same being, hence why they appear as three separate people (even though they're not). But God just is His divinely-simple Actuality and is entirely inseparable.
These 3 can even interact like they're distinct beings/persons, even though they're not. It's even better than the H2O analogy, because all three co-exist at one time, in a sense.