Taj Mahal polished to emphasise the exquisite detailing of the carvings. The dado frames and archway spandrels have been decorated with pietra dura inlays of highly stylised, almost geometric vines, flowers and fruits. The inlay stones are of yellow marble, jasper and jade, polished and levelled to the surface of the walls. The interior chamber of the Taj Mahal reaches far beyond traditional decorative elements. The inlay work is not pietra dura, but a lapidary of precious and semiprecious gemstones. The inner chamber is an octagon with the design allowing for entry from each face, although only the door facing the garden
Origins and architecture of the Taj Mahal Jahan has appropriated the authority of the 'throne of god' symbolism for the glorification of his own reign. Koch disagrees, finding this an overly elaborate explanation and pointing out that the 'Throne' verse from the Qu'ran (sura 2, verse 255) is missing from the calligraphic inscriptions. In 1996 Begley stated that it is likely that the diagram of "Plain of Assembly" ("Ard al-Hashr)" on the Day of Judgment by Sufi mystic and philosopher Ibn Arabi (ca. 1238) was a source of inspiration for the layout of the Taj Mahal garden. Ibn Arabi was held in high regard at the time