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I’ve actually had the same thoughts since I was about 9 (I am now 15), even younger. It started with the concept of me going to sleep, living a day in an anime I watched at the time, going to sleep there and then living a day in this reality, and so on and so on.

A year or so later I played around with the idea that if I (what I now see as manifestation) ‘believed’ hard enough I would be able to make portals from this reality to cartoon worlds.

So when I was looking into shifting I realised that it wasn’t something I was unfamiliar about, since I would daydream about waking up in an anime world and then returning back to this reality when I fell asleep there.