The
#serdab (Arabic for cellar) is a small, sealed chamber located on the north side of the Step Pyramid, adjacent to the mortuary temple. It contained a life-sized statue of Djoser, likely representing his ka, which was believed to reside in the statue to receive offerings and maintain the pharaoh’s presence in the world of the living.
The serdab is notable for its two small holes, roughly 4-6 inches in diametre, drilled through its north-facing wall at eye level, aligned to allow the statue to gaze toward the northern stars, associated with immortality in
#Egyptiancosmology.
These holes are central to the Camera Obscura hypothesis, as they resemble the pinhole or aperture needed for such an optical effect. This Camera Obscura allows the light to pass through a small hole into a darkened space, projecting an inverted image of the external scene onto an opposite surface.
In the serdab’s case, the holes could theoretically project an image of the statue or external environment, depending on the setup.