The 'Pineal Gland' as the seat of the soul? - Not for me!

The idea of the pineal gland as the literal "seat of the soul" concept largely stems from the seventeenth-century philosopher René Descartes, who suggested it because the pineal gland is a single, unpaired structure in the brain (whereas most brain regions come in left and right halves). From the perspective of modern neuroscience and anatomy, we now know the pineal gland is simply an endocrine gland responsible for producing melatonin to help regulate our sleep-wake cycles (circadian rhythms). It has no mystical or metaphysical properties from my perspective. I cannot see this theory of Descartes as realistic despite the fact it resembles the Egyptian 'Eye of Horus'.

I personally equate the soul with the mind which bridges the gap between science and personal conviction. I acknowledge the physical reality of how our brains work (biology, neurology, and chemistry). I also retain a profound appreciation for subjective experience—the human beings capacity for love, reason, creativity, and self-reflection—without needing to locate a mystical switch inside the physical body or putting into a box everything that we cannot explain.

Rene Descartes