I came up with a theory that Great Pyramid of Giza was used by religious leaders to receive messages while sleeping or perhaps meditating. Research has been done showing the Pyramid would focus electromagnetic energy into the central chamber of the Great Pyramid of Giza. I’ve also seen research saying the geo-magnetic field has an effect on dreams. So one or both of these would be concentrated by the Pyramids. This would affect the brain of people inside the Pyramid. Now whether these religious leaders actually received any messages or just interpreted stimulated neurons as messages, I make no claim.
This is just a weird idea with no real backing.
"Sources":Study reveals the Great Pyramid of Giza can focus electromagnetic energy
An international research group has applied methods of theoretical physics to investigate the electromagnetic response of the Great Pyramid to radio waves. Scientists predicted that under resonance conditions, the pyramid can concentrate electromagnetic energy in its internal chambers and under the base. The research group plans to use these theoretical results to design nanoparticles capable of reproducing similar effects in the optical range. Such nanoparticles may be used, for example, to develop sensors and highly efficient solar cells. The study was published in the Journal of Applied Physics.Sweet dreams are made of geomagnetic activity
Looking for an explanation for weird dreams? New research suggests you can blame the Earth's magnetic field, not a repressed childhood