Deja vu is a common phenomenon where you recognize something but have no idea why.
“What if deja vu was dying and being reloaded to the save point?”
Maybe your brain has recognized a pattern that you had seen in another context, but you don’t remember what the context was.
Maybe you were in an unconscious state of daydreaming, and when you regain your consciousness you become surprised at how familiar the environment is. By the way, when I was about 10 I thought of it like how you feel like you’ve dreamed about this before.
Personal experiences
This video is about the hologram and divided attention theories.
The hologram theory says that your brain has recognized a pattern that you had seen in another context, but you don’t remember what the context was. Therefore, you recognize something and you don’t know why.
The divided attention theory says that you were at somewhere but you were unfocused, maybe deep in thought or staring at one particular thing. So you are in an unconscious state of daydreaming, and when you regain your consciousness you become surprised at how familiar the environment is.
Also, it is a habit of mine to say the words “deja vu” whenever I feel it, because I feel obligated to say it, for some reason.