The pineal gland which converts the amino acid trytophan into serotonin (a neurotransmitter) & in turn melatonin is released. In a 2002 study published in Bioelectromagnetics journal: S.S. Baconnier & assoc. dissected 20 difff. Human pineal glnad & found 100-300 crystals per cubic millimetter floating inside, largely compossed of calcite & very similar to the inner ear crystals known to be Piezoelectric (means the expand and contract in the presence of electromagnetic fields). These crystals can be used to tune in a radio station without electricity (think of a wireless transmitter). Piezoelectric crystals also give off light, some release diff. colored photons from the same crystal depending on the signal they receive. The pineal gland may load up with piezoelectric microcrystals & cause the 3rd eye to pull in more photons. Is this the bright white light people talk about when they’ve had near death experiences??...

The pineal gland accumulates fluoride & has the body’s highest concentration. High concentrations of fluoride has been shown to depress melatonin & cause calcification as it enters it via the boodstream & attaches the crystals floating inside and covers them with a hard mineral deposit, creating the white, bonelike lumps thus damaging the glands ability the synthesize the chemicals we need. Since the Pineal gland is not protected by the blood brain barrier heavy metals such as Alum. Oxide enters thru the lungs & then into the blood stream & makes it's way to the gland and further calcifies the floating calcite crystals.
A paper written by Wardle, Lee, Akester and Braithwaite at Thiokol Corp. warns of hazards from aluminum oxide nanoparticles. The EPA has 22 warning articles on Alum. Avail on the gov. website.
So it seems that damage to pineal gland will cause your 3rd eye, seat of your soul to possible stop receiving and transmittine these photon/light signals & close your mind to what the universe is trying to tell you…

"The source field investigations" by david wilcock has many of the above references.

So you can see how it ties in the Melatonin crop circle at Roundway hill.