Ambaji-the Origin of the Supreme Cosmic Power of the Universe is one of the fifty one 51 ancient Shakti Piths Tirth in India.
There are 12 main Shakti Pith Tirth, significant places of pilgrimage for the worship of Shakti, namely, Ma Bhagwati Mahakali Maha Shakti at Ujjan, Ma Kamakshi at Kanchi Puram, Mata Bramaramba at Malay Giri, Shri Kumarika at Kanya Kumari, Mataji Ambaji at Anartgujarat Mata Mahalaxmidevi at Kohlapur, Devi Lalita at prayag, Vindhya Vasini at Vindhya, Vishalakshi at Varansi, Mangalavati at Gaya and Sundari Bhavani at Bangal & Guhya Kesari in Nepal.

The Great Miracle of this Holy Place is that there is no idol or picture in the Nij Mandir the Temple of Shri Arasuri Mata Ambaji, but a simple cave like Gokh in the inner wall, in which A Gold Plated Holy Shakti Visa Shree Yantra, having kurma back convex shape and 51 Bij letters therein, connected with that of the original Yantras of Nepal and Ujjain Shakti Piths, is also ritually installed in such a way it can be visible for devotion, but never photographed in past nor can be so done in future. 
The worship of this Visa Shree Yantra is done only after tying a bandage on the eyes.