Before the hero’s left-brain ego cells developed his perception of himself as an individual, he possessed the collective knowledge of his right brain’s unconscious mind. With time, as the individuation of his left brain developed, it grew to dominate and inhibit the knowledge of his right-brain mind.
In the language of the brain, the hero must step out of his own ego-based left-brain consciousness and into the realm of his right brain’s unconsciousness. At this point, the hero feels connected to all that is and is enveloped by a sense of deep inner peace.