i actually might think there is something to this. Recently I got an interest in the Silent Hill series and played my first game of the franchise, Well after getting a bit too involved I had kind of a nightmare, but I feel like I was actually pretty self aware and I fought back.
I probably don't rememberr most of what I dream, but if I remember properly I think I might have also had times in the past I have kept kicking ass. Including useing weapons I am familiar with.
There are some other dreams I have had effected by gaming, one was where I feel like I am actually playing it, like I felt like I was actually moving and in a Podracer from the star wars franchise, that fel really weird, like it was real.
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Through dream I travel, at lantern's call
To consume the flames of a kingdom's fall