"The 'deva-eye' exists no more for the majority of mankind. The third eye is dead, and acts no longer; but it has left behind a witness to its existence. This witness is now the pineal gland."
That's a quote from Theosophy founder H. P. Blavatsky and while it's firmly rooted in the spiritual world, it does manage to sum up humanity's ongoing relationship with the notion of a buried third eye, our very real pineal gland and the primeval origins of sight.
In this episode of Stuff to Blow Your mind, we discuss the human pineal gland. So we'll discuss how this eye-like structure inside our heads transduces sense signals about the world outside our body into hormonal signals.
We'll discuss pineal evolution, as well as some of the notions regarding the gland's role as the seat of sensus communis or as a DMT-pumping gland that enables us to see dark matter. Oh yeah, and I'll mention "From Beyond" a little as well.
The topic also leads us into an exploration of the paratial eye common to various lizards, fish and insects. Why do these creatures have a third, primitive "eye" in the middle of their foreheads? It's not a true eye with which to see the world, but rather an ancient means of observing the planet's cycles of light and darkness.
And yes, it's the first episode title composed entirely of song titles from my iTunes folder.
STREAM THE EPISODE RIGHT HERE: [audio http://www.podtrac.com/pts/redirect.mp3/podcasts.howstuffworks.com/hsw/podcasts/sciencelab/2013-01-31-stbym-pineal-optics.mp3]
Note: If you went to listen to this episode via iTunes, etc. and discovered it was a CarTalk episode instead, please download it again. Sorry for the confusion!