Nibley and Rhodes explain significance of Figure 7 of Fac 2 from ancient Egyptian perspective.
Hugh Nibley and Michael D. Rhodes, One Eternal Round, The Collected Works of Hugh Nibley: Volume 19 (Salt Lake City, UT: Deseret Book; Provo, UT: Foundation for Ancient Research and Mormon Studies, 2010), eBook version, 430–441
[Extensive commentary on meaning of Figure 7 of Facsimile 2 of the Book of Abraham]