Many years ago I read this:
"What did the true pyramid represent? A remarkable spectacle may sometimes be seen in the late afternoon of a cloudy day at Giza. When standing on the road to Saqqara and gazing Westwards at the pyramid plateau, it is possible to see the sun's rays striking downwards through a gap in the clouds at about the same angle as the slope of the Great Pyramid. The impression made on the mind by the scene is that the immaterial prototype and the material replica are here ranged side by side." IES Edwards "The Pyramids of Giza" p.222 1971 edition.
I couldn't help being reminded of this passage when I saw this at Giza:
I'm not sure how seriously to take the suggestion and I dread to think what meteorological conditions could lead to the Bent Pyramid...
Jon
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