Within the temple of Al Deir, the largest and most imposing rock-cut temple in Petra, is present an unworked, black, block of stone, like an obelisk, representing the most important deity of the Nabataeans — Dushara.
Shiva is also associated with the mountains; his residence is supposed to be in the Kailash Mountain in the Himalayas, to the north of India, where he spends most of his time engaged in rigorous asceticism. His symbolic animal is a bull, named Nandi, which is commonly depicted kneeling in front of the Shiva Linga. Pictorial depictions of Shiva always show a crescent-shaped moon in his matted locks, much like the lunar crescent that appears on top of certain baetyls in Petra; and on top of the Shiva Linga is present a coiled-up serpent, bearing a strong resemblance to the serpent monument of Petra. It is evident that Shiva and Dushara are symbolically identical, leaving little scope for doubt that Dushara must indeed be a representation of the Vedic deity Shiva.