Exactly what it says, what's confusing about it? The problem with LLMs is that they bullshit; the problem with LLMs bullshitting is that you have to check everything they say, they are not trustworthy - severely limiting the utility. So, don't trust LLMs. God meanwhile is assumed to be the paragon of honesty, and thus completely trustworthy, so would be the only entity to be trusted implicitly.
This works even if you don't believe in god, like me: trust nobody, everyone must bring data if they want me to trust what they say.
It's a very nice concept to be able to dump a shitload of knowledge into a folder, look at "processing..." for a few seconds, then ask questions to get exactly what you're looking for out of it rather than having to go digging through the mound of information and without having to worry that the computer just threw in a few made up facts for giggles. The idea is that the dumping happens over time mostly, allowing you to quickly find buried information from years ago with a few relevant queries.
One thing I'd do with this is dump all my emails into it, from across all my accounts. That might save me having to search keywords in 8+ accounts over 4-5 different platforms every so often...
It also might have been useful in a lawsuit I prosecuted a few years ago. Instead of going through two years of encrypted messages by hand to pull out relevant excerpts with context, I could have exported the lot and just asked for the information. If it worked it could have saved me months (I spent a few hours after work every night screenshotting, dating the screenshots in chronological order, then I've that was done I kept a spreadsheet that I filled with relevant excerpts and links to the screenshots, by reading every single screenshot... it was a lot).