For Hanukkah (which starts this evening)—
Part I — The Stella Octangula (see also Monday's ART WARS post)—
Part II — A different view of the Stella —
Click images for some mathematical background.
For some philosophical background on illusion and reality, see Graham Priest in the Sunday, Nov. 28, New York Times column "The Stone" and in a work of fiction he published in the Notre Dame Journal of Formal Logic (Vol. 38, No. 4) in 1997.
* See Google Images for pictures that are less academically respectable.
For some related religious lore, see Merkabah at Wikipedia.