Thanos5150 Wrote:
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>
> Again, from the 6th Dynasty:
> "The doors of Pekh-ka which are in the abyss
> open themselves to Pepi, the doors of the iron
> which is the ceiling of the sky open themselves to
> Pepi, and he passeth through them;".

I'm sorry, how did the 6th Dynasty write "iron"?
And how do we know that what we call "iron" today is what that text is referring to?

For that matter, what is the "ceiling of the sky" and how did it "open"?