Here are some photos on the north transept rosette window depicting an inverted pentegram in the center of the rosette.



Explorations of ancient Temple and Ascent traditions from an LDS perspective.
“‘For when,’ says the scripture, ‘he [the High Priest] goes into the holy of holies, he will not be a man till he has gone out again’ (Lev 16:17). But if at that time he is not a man, it is clear that he is not God either, but a minister (leitourgos = one who performs sacred ritual) of God, belonging as to his mortal nature to creation, but as to his immortal nature to the uncreated God. When [the High Priest’s] intellect (nous) is seized by divine love, when it strives with all its might to arrive at the most inner sanctuary (aduton = Holy of Holies), when the person surges ahead with all his force and with all his zeal, transported by the deity, he forgets everything, and forgets himself; he remembers only the deity, and is suspended from Him. ... But when this inspiration fades, and desire loses its fervor, he becomes a human being once again, He leaves divine things behind [= leaves the Holy of Holies], and then encounters the human things which wait for him in the gateway of the temple (propulaiois).” (adapted from Pierre Hadot, What is Ancient Philosophy, (Harvard, 2002) p. 162--a superb introduction to ancient philosophy--and the Yonge translation.)
“This is the purport of that rule of our [Neoplatonist] Mysteries: ‘Nothing Divulged to the Uninitiate’: the Supreme [God] is not to be made a common story, the holy things may not be uncovered to the stranger, to any that has not himself attained to see [the vision of the One]. There were not two; beholder was one with beheld; it was not a vision compassed but a unity apprehended. The man formed of this mingling with the Supreme must--if he only remember--carry its image impressed upon him: he is become the Unity, nothing within him or without inducing any diversity; no movement now, no passion, no outlooking desire, once this ascent is achieved; reasoning is in abeyance and all Intellection and even, to dare the word, the very self: caught away, filled with God, he has in perfect stillness attained isolation; ... He belongs no longer to the order of the Beautiful; he has risen beyond beauty; he has overpassed even the choir of the virtues; he is like one who, having penetrated the inner sanctuary [of the temple], [leaves] the temple images [of the gods] behind him--though these [images] become once more the first objects of regard when he leaves the holies [of the temple]; for There [in the temple/contemplation] his converse was not with [an] image [of the god], nor with trace, but with the very Truth in the view of which all the rest is but of secondary concern.” (Plotinus, The Enneads, 6.9.11, MacKenna translation.)