The pineal gland (otherwise known as the Third Eye, conarium or Epiphysis Cerebri) is a small endocrine gland located at the geometric center of the brain.
Amongst other things our pineal gland is responsible for the production of melatonin (a serotonin derived hormone), the regulation of our sleep patterns, circadian rythms and our sexual deveopment. It’s also known to increase our intuition and thought to be responsible for DMT production (a naturally occurring hallucinogenic found in all living organisms, including human beings).
The pineal gland, who’s name derives from the Latin word pinea, meaning ‘pinecone’ in reference to it’s pine-cone shaped body, was coined by Seventeenth-Century French philosopher, Rene Descartes, as the “seat to the soul” believing that it was the gateway to a spiritual world. This belief is shared today by millions of people world-wide and even shared by many ancient civilizations including the Romans, Egyptians, Babylonians and Greeks. Many (if not all mainstream religions) up to this day have references to the pineal gland in their texts and teachings.
Also known as the Third-Eye, the pineal gland shares many of the same anatomical components to our actual eyes, including rods and cones; interestingly, in lizards you’ll find that their third eye even has a cornea.