The pineal gland (also called the pineal body, epiphysis cerebri, epiphysis or the "third eye") is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and seasonal functions.
Its shape resembles a tiny pine cone (hence its name), and it is located near the center of the brain, between the two hemispheres, tucked in a groove where the two rounded thalamic bodies join.
Every human being's Pineal Gland or third eye can be activated to spiritual world frequencies and enables you to have the sense of all knowing, godlike euphoria and oneness all around you.
A pineal gland once tuned into to proper frequencies with help of meditation, yoga or various esoteric, occult methods, enables a person to travel into other dimensions, popularly known as astral travel or astral projection or remote viewing.