The pineal gland (also called the pineal body, epiphysis cerebri, epiphysis or the "third eye") is a small endocrine gland. It produces melatonin, a hormone that affects the modulation of wake/sleep patterns and photoperiodic (seasonal) functions. It is located near to the center of the brain between the two hemispheres, tucked in a groove where the two rounded thalamic bodies join.Unlike much of the rest of the brain, the pineal gland is not isolated from the body by the blood-brain barrier system. It is reddish-gray and about the size of a pea (8 mm in humans). While the physiological function of the pineal gland has been unknown until recent times, mystical traditions and esoteric schools have long known this area in the middle of the brain to be the connecting link between the physical and spiritual worlds. Considered the most powerful and highest source of ethereal energy available to humans, the pineal gland has always been important in initiating supernatural powers. Development of psychic talents has been closely associated with this organ of higher vision. The third eye controls the various bio-rhythms of the body. It works in harmony with the hypothalamus gland which directs the body's thirst, hunger, sexual desire and the biological clock that determines our aging process. When it "awakens", one feels a pressure at the base of the brain and in the forehead.. The pineal gland's location deep in the brain seems to intimate hidden importance. In the days before its function as a physical eye that could see beyond space-time was discovered, it was considered a mystery linked to superstition and mysticism. Today it is associated with the sixth chakra. It's about the Eye, Zero Point, focusing your consciousness and trusting what you see. You do it all the time and may not beware of the difference between your thoughts and those from higher frequency. I was told that the third eye has a lens that opens to see behind physical reality, so you might want to relate to that theory. When the third eye opens it can feels like a pressure at the base of the brain. We all want to be more psychic and increase the connection with the other side as our Consciousness Hologram closes and souls return to light. We want to empower and most of all to understand beyond the physical. Meditation, Visualization, Yoga, and all forms of Out of Body Experiences help.