"There are numerous mysteries related to the Great Pyramid of Giza, but there is one which researchers are unable to explain: Why is the Great Pyramid –one of the most precise ancient structures on the surface of the planet— missing a capstone on its top?"
https://www.ancient-code.com/the-missing-capstone-of-the-great-pyramid-of-giza/?amp=1
"Whilst a pyramid is being constructed, the top stone, which is called the capstone, is the final part to be placed onto the construction. Essentially this means that the capstone is the most important part. Some experts have suggested that the capstone of the Great Pyramid has always been absent and it was left this way on purpose.
However, others have argued that if you at the characteristics, not to mention the beauty of it; it is not likely that those building the Great Pyramid left it unfinished by not placing a capstone on the top."
https://realparanormal.com/the-secret-of-the-great-pyramids-missing-capstone/
"Raised I high over the entrance, a doorway, a gateway
leading down to Amenti.
Few there would be with courage to dare it,
few pass the portal to dark Amenti.
Raised over the passage, I, a mighty pyramid,
using the power that overcomes Earth force (gravity).
Deep and yet deeper place I a force-house or chamber;
from it carved I a circular passage
reaching almost to the great summit.
There in the apex, set I the crystal,
sending the ray into the "Time-Space,"
drawing the force from out of the ether,
concentrating upon the gateway to Amenti.
Other chambers I built and left vacant to all seeming,
yet hidden within them are the keys to Amenti.
He who in courage would dare the dark realms,
let him be purified first by long fasting.
Lie in the sarcophagus of stone in my chamber.
Then reveal I to him the great mysteries.
Soon shall he follow to where I shall meet him,
even in the darkness of Earth shall I meet him, I,
Thoth, Lord of Wisdom, meet him and hold him
and dwell with him always.
Builded I the Great Pyramid,
patterned after the pyramid of Earth force,
burning eternally so that it, too,
might remain through the ages.
In it, I builded my knowledge of "Magic-Science"
so that I might be here when again I return from Amenti,
Aye, while I sleep in the Halls of Amenti,
my Soul roaming free will incarnate,
dwell among men in this form or another. (Hermes, thrice-born.)"
https://www.crystalinks.com/emerald1bw.html