This is pretty close to the filter theory or transmission theory of consciousness, described by William James and FWH Myers over a century ago. In their view,

This is pretty close to the filter theory or transmission theory of consciousness, described by William James and FWH Myers over a century ago. In their view, consciousness is far more vast than we are aware of, and our brains filter most of it out in the same way that they filter out all kinds of stimuli they deem unimportant to physical survival. All kinds of physical events can affect the parameters of the filtering: near-death experiences, psychedelic drugs, deep meditation, stroke, hunger...essentially anything that changes the brain modifies which parts and how much of the spectrum of consciousness gets through to an individual’s experience.