Aldous Huxley’s extract from “The Doors of Perception” here explains this Sensory Gating: This interesting perspective mooted originally by Dr C. D. Broad which suggests the function of the brain, nervous system and sense organs is in the main eliminative and not productive. So consciousness as we know it could actually be a reduced awareness of mind through a filter and petrified by (local) language.
This sensory gating process enables us to decipher the difference between “me” and “not me.” Through sensory gating, we are able to manage and comprehend the constant stream of sensory data from the external environment. Without it, we would be unable to filter out what matters and what doesn’t, and all sensory data would touch us deeply and ultimately, we would become overstimulated and overwhelmed and go “crazy” -according to modern medicine, that is.
Some claim that access to ESP, visionary beauty and other extraordinary experiences including altered states of consciousness, sometimes known as the Sixth Sensory channel, can be brought about through hypnosis and meditation.