Originally Posted by
calikid
Your descriptions sound similar to Peyote Button and/or mescaline "trips".
Mind altering substances for sure.
But going to another realm?
Suspect it is just simply altered perceptions.
Many years ago I read Carlos Castenada's series of books about a Yaqui Shaman that lead him on spiritual journeys, fueled by such psychotropic substances.
You might enjoy the books, probably still in print.
You only get one brain. Playing with brain chemistry can be fun, but is it safe? Who knows for sure?