BTW, that's a very weird topic.
We have a virtual infinity of weird info on this topic swirling around the internet, and yet we know exactly what the pineal does; it secretes melatonin thus regulating circadian rhythms. It's a known quantity.
If memory serves, all the weird metaphysical mumbo-jumbo surrounding the pineal gland comes singularly from Helena Blavatsky (who founded the Theosophical Society.) She decided, just decided, the pineal gland was the same thing as the "third eye" from Eastern Mysticism. And her belief has since permeated through all kinds of New Age literature, and we still hear about it to this day.
As I recall, there is no connection whatsoever in ancient sources connecting the pineal to the mystical idea of the "third eye." That came solely from Blavatsky.
Ok, way off topic... but interesting.
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