What Is the Third Eye? Spiritual Meaning vs. Pineal Physiology
The “third eye” is primarily a spiritual and symbolic concept. Modern wellness culture often connects it with the pineal gland, but the two should not be treated as scientifically interchangeable.
Two different frameworks
Third-eye traditions use spiritual, philosophical and contemplative language. Pineal physiology is studied through anatomy, endocrinology and circadian biology. A useful guide can discuss both without turning one into proof of the other.
Meditation
Meditation can be practiced without making biological claims about physically “opening” an organ. Experiences during meditation are personal and should not be presented as evidence of pineal activation.
Go deeper
See Pineal Gland and the Third Eye for a direct comparison.
Sources & further reading
NIH/PMC: Circadian Regulation of Pineal Gland Rhythmicity · PubMed: Pineal calcification systematic review · PubMed: Melatonin and the circadian system