Is history contained in mental strata?

Last July my wife and I went to Reno.
We left about noon and all morning before then I meditated pretty intensely.
By the time we were half way there I had a surge of energy that was accompanied by alternating bliss and anxiety. I'd never experienced anything quite like it before or after.
By nighttime it was mostly bliss. (some of the anxiety had to do with the fact that I'd left my teenage daughter alone in the house to do who knows what)
Anyway, I'm doing a lot of concentration work now. At least two or three times while in some level of concentration I've gotten a strong mental picture of the parking lot behind our Reno hotel. It comes and goes quickly.
Here is what I am thinking: when I hit some place in my brain similar to that day's some kind of memory is triggered.
Does that sound at all possible?
this isn't the only example of this just the most common right now

Hi Mike,

I often have vivid images from no conscious cause. When the mind is quiet there can be a feeling of lots of happening beneath the surface, then something seemingly unrelated will break through.
I surmise if what arises seems unrelated to to a passed conscious thought, this maybe the result of your mind getting quieter.

Great question. From direct experience, the 90% of "vivid images from no conscious cause" (exactly!) seems unrelated to past experiences (movie stills, and I don't even watched those movies!).
But sometimes I had some strange insights about connections made by the brain: 2 past experiences were merging (2 female faces, 2 convivial situations), producing a third reality (an in-between-face, a superset of the people involved in drinking wine in two different places) and it took time to separate the original frames and recognise the original memories.
I think this has to do not only with biographical history in the mind, but also with the overwriting of memories the mind is constantly doing.
Two days ago I saw in the inner visual screen a piece of tartan on the left, and a reptile-like monster on the right (the Loch Ness one...). I think that simply the brain cluster SCOTLAND was active in that moment...

"Hi Mike,

I often have vivid images from no conscious cause. When the mind is quiet there can be a feeling of lots of happening beneath the surface, then something seemingly unrelated will break through.
I surmise if what arises seems unrelated to to a passed conscious thought, this maybe the result of your mind getting quieter.

"

Well ... sure, I have vivid images all the time in and out of meditation. This one, however, since it was related to such an intense spiritual experience and since it seems to come up while passing through a specific mental state makes me think they may be related and there may be a conscious cause. Like a sense memory.

"Well ... sure, I have vivid images all the time in and out of meditation. This one, however, since it was related to such an intense spiritual experience and since it seems to come up while passing through a specific mental state makes me think they may be related and there may be a conscious cause. Like a sense memory. "

Hi Mike,
put this way, it seems an 'anchor' as defined in Neuro Linguistic Programming.
A trigger linking a mental state to a sensation (visual here).
In NLP anchors work in the other direction: you anchor a mental state by linking it to a sensation, with the aim of coming back in that state at will using the sensation.
In your case you are in a mental state which triggers a visual sensation.
But it could be the same mechanism.

"Here is what I am thinking: when I hit some place in my brain similar to that day's some kind of memory is triggered.
Does that sound at all possible? "

Sure it does. Memory works by association. Perhaps the most vivid example of this in everyday life is when you get a vivid memory image from a particular kind of smell that reminds you keenly of something in the past. I've had this happen to me once or twice and it's quite impressive. It almost feels like you're back at the original event for a moment. Just such an event is what embarked Marcel Proust on his whole literary career. He wrote on this:

"The sight of the little madeleine had recalled nothing to my mind before I tasted it...." but "....as soon as I had recognized the taste of the piece of madeleine soaked in her decoction of lime-blossom which my aunt used to give me .... immediately the old grey house upon the street, where her room was, rose up like a stage set to attach itself to the little pavilion opening on to the garden which had been built out behind it for my parents."

You've probably stumbled upon something like this, except your trigger is a concentration state instead of a smell or taste.