An interesting conjecture. Might the Egyptian Book of the Dead be derived directly from the Atlantean Book of the Dead and be important for just that reason? Here we are discovering the potential depth of direct communication between departed enlightened spirits and those open to it who are living.
What is described is far more than i expected and we get introduced to another realm of the afterlife that also remains benign while appearing to deep in matter and an image of our idea of Hell. I remark that each culture appears to sculpt its own imagined afterlife and they are sometimes quite surprising.
The core law of the afterlife remains like associating with like and that provides huge scope for the visual as that is actually irrelevant but supports the individuals self image. An abode may well be solely an expression of your own imagination as i certainly can attest.
“In sleep we enter upon the same life as that we enter between death and birth.”