Reality tunnels constrain one's view of reality and to a certain
extent also constrain one's sensory input. They form a matrix and
filter for how we interpret and perceive the world and thus they can
facilitate the creation of illusion....
[W]hen one changes one's point of view, facts that have appeared
completely inexplicable may suddenly seem obvious....
People use paradigms whether they know it or not, and they cannot
easily change their paradigms. Most people find it impossible to
maintain more than a single paradigm simultaneously. People lock
themselves into a universe of discourse and simply cannot view the
world differently unless they shift to a different paradigm.