Phasing model

The Phasing Model, which was defined by Robert Monroe, holds the belief that it is impossible to actually leave your body in the truest sense of the word, and that the astral planes and the physical world are merely points on the long spectrum of consciousness. When a person projects, they actually "phase" into another area of consciousness and the locales it contains. This can be likened to tuning a radio to another station. One of the initial signposts representing a phase shift away from physical reality has been labeled the state of focus 10 (mind awake/body asleep). This viewpoint can be seen as a logical progression of the philosophy that external reality is actually an internally created state

Source: Crystalinks, www.crystalinks.com (with permission)