This discussion reminds me of a story I once heard about (I believe) St. Augustine. He was on a beach watching a little boy carry water and pour it into a hole he had dug in the sand. He told the boy that he would never be able to put the entire ocean into the hole, and the boy told him that he’d never be able to understand the Trinity.
I’ve just been reading a really difficult, but wonderful book, The Three Ages of the Interior Life, by Garrigou-Lagrange. One of the early chapters concerns what will happen in heaven - that we will know even as we are known by God. God knows directly, without the intervention of ideas. (Take a minute to wrap your mind around this one!) When we get to heaven, the beatific vision will consist of knowing God directly, at which point, we’ll understand the Trinity. It’s our human ideas (by which I mean the process of thinking with ideas, not goofy ideas that individuals come up with), and the limitations of our intellect that get in the way of answering your questions, Greg.
The following is entirely my opinion. I think that when you pray to God, either “God” or one of the Divine Persons, “God,” Who is indivisible, will hear you. Because God is one, you cannot pit one of the three Divine Persons against another, not that you would want to - this is just theoretical. And God bless the person who put up the Athanasian Creed - that’s as close as we’ll get to a real explanation before we die.
Betsy