It's only in the past 3000 years or so that the dominant worldview has shifted to assume that consciousness is limited to certain biological entities. Considering that humans have been wearing clothes for about 170,000 years, 3000 years is kind of a small blip in the main scheme of human things.

Rene Descartes proposed that the soul interacts with the body through the pineal gland in the brain. In modern neurobiology, the cerebral cortex has replaced the pineal gland as the seat of consciousness. Modern science has disproved Descartes pineal gland theory as anatomically incorrect, but in all of this empirical brain mapping there is still no rational explanation for the phenomenon of experience.

Despite this lack of explanation most of us here in the western world still carry a largely unchecked assumption that our imaginal experiences (thoughts, memories, daydreams and the like) are happening somewhere inside of our head. “having a song stuck in your head” “i need to clear my head” these are common examples of how the words head and mind are often used interchangeably in english.

Reducing experience to the matter of the brain is like reducing the music you hear coming through your headphones to the matter of the cassette tape. All that is inside of the tape is tape. All that is inside of the brain is flesh. You don't experience tape. You don’t experience your neurons. you experience music.

The shift from geocentrism to heliocentrism as an analogy for the shift from brain centered consciousness theory to fundamental consciousness theory.