… A realm to me is a place where we exist. there can be many of these in one dimension depending on the size of each realm and the size of the dimension. In each realm we can ether exists or we don't. We could be a cat in one and a business man in the second. They range to be so different that one could have the use of magic others can not. perhaps we live in space in another. We could be an elf in one or a fairy or we could still just be a baby in another. we could live forever in one and only a few years in another. What if we already knew this in one for a long time and can jump realm to realm. others we could be back to our primitive state. the possibilities are endless of all the realms that could exist but the dimension is not. there fore there are only a few in each
I also believe that we can be aware of these realms though daydreaming, mediating (although i have never tried it myself) and actual dreams. I also believe there is a cause and effect thing where we can influence one realm with something we do here or jumping emotions/thoughts to the other realms. We do this subconsciously of course. I mean have you ever been walking along and thought of something completely random? what if that was not so random and it was actually a thought from another realm. Or perhaps it was something we were actually doing somewhere else. For example Dragons. almost every culture around the same time dreamed up the dragon. but they did not have communication with one another and many times did not even knew the other existed. What if the stories came from dreams and the dreams came from something that was happening in the other realm?