I'm trying to understand your experience. I'll admit, it sounds crazy. But I'm all ears.
Maybe you're not following me. I am asking you to try to understand YOUR experience.
Do you have a personal relationship with the Father? If you try to tell me that all you have is a 2,000 year old book, I will ask, how is that personal? And why does the NT speak of fellowship with the Holy Spirit?
Once you agree that it is personal, and I hope you will, can it be defined without loudness? You can reply, 'Ok I have no theory. I'm lost here' - but if you do so, shouldn't you be cautious about lampooning MY theory? At least I have one. And take a look at Romans 8:
"For those who are led by the Spirit of God are the children of God.
15The Spirit you received does not make you slaves, so that you live in fear again; rather, the Spirit you received brought about your adoption to sonship.
f And by him we cry, “Abba,
g Father.”
16The Spirit himself testifies with our spirit that we are God’s children."
That sounds like a personal relationship to me. Strikes me as clear case of loudness. If you disagree, explain that passage to me, in clear terms, without reference to loudness.