"Everyone sits in the prison of his own ideas.
A human being is a part of the whole called by us "Universe," a part limited in time and space. He experiences himself, his thoughts and feelings as something separated from the rest- a kind of optical delusion of his consciousness.
This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us. Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty."
Reality tunnel is a term coined by Timothy Leary and popularised by Robert Anton Wilson. It refers to the concept that with a subconscious set of filters formed from their beliefs and experiences, everyone interprets this same world differently, hence "Truth is in the eye of the beholder". This is not necessarily meant to imply that there is no objective truth; just that our access to it is mediated through our senses, experience, conditioning, prior beliefs, and other non-objective factors. The individual world each person occupies is said to be their reality tunnel. The term can also apply to groups of people united by beliefs: we can speak of the fundamentalist Christian reality tunnel, the scientific materialist reality tunnel, the libertarian reality tunnel, etc
The concept of reality tunnels fits in nicely with the scientific concept of confirmation bias by which we tend to notice and assign significance to observations that confirm our prior beliefs, while filtering out or rationalizing away observations that do not fit with what we believe. This helps to explain why reality tunnels are usually transparent to their inhabitants. While it seems most people take their beliefs to correspond to the "one true objective reality," Robert Anton Wilson emphasizes that each person's reality tunnel is their own artistic creation, whether they realize it or not.
Through various techniques one can break down old reality tunnels and
impose new reality tunnels by removing old filters and replacing them with new ones, new
perspectives on reality - at will. This is achieved through various processess of deprogramming
using meditation, controlled use of hallucinogens, neuro-linguistic programming, cybernetics,
hypnosis, bio-feedback devices, and forcibly acting out other Reality Tunnels. Thus, it
is believed one's Reality Tunnel can be widened to take full advantage of human potential
and experience reality on more positive levels! Robert Anton Wilson's Prometheus Rising is
(among other things) a guidebook to the exploration of various reality tunnels, breaking through
the current one and opening our minds to a whole new world.
(Reality tunnel is also known as world-model, reference frame, intentionality etc)
When we get out of our old reality tunnel, a whole new world emerges