higher consciousness

Is there really a state one can achieve called higher consciousness or could it just be brainwork? Is it possible that a person on the way to higher consciousness is actually psyching out the brain to believe in something? How do you differentiate between vision and hallucination?

Bill of Lights (adapted from Liberation of Consciousness) We who aspire to a life of Truth . . . in order to unite ourselves within the guiding Light of its silent providence, and to secure the blessings of a freedom that only its presence can provide, hereby establish within and amongst...