Eye Spy
by maxmosher
Usually I would do a bunch of very scholarly research (ie. wikipedia) to provide some background on this mysterious, a little bit scary rock with human-like eyes I saw in Jaisalmer, India. But I’ve got nothing. Anybody know what their deal is?
Max's Blog 
these are statues of the various God forms in India. Eyes are symbolic of us being watched over by them.
Hope this helps…
There are few things we have to consider while answering this question
1) Orange color depicts the sacrifice and getting away from materialist world to a spiritual world. Hence prominently its used to color many gods.
2) The culture of stone and coloring the stone started somewhere in medieval period, the major reason was the idols, statues and sculptures representing Gods and demigods were getting destructed by Moghuls (Islamic rulers from Middle east/ Afgan etc). There are many references which shows the brutal attacks on temples and Hindu religious places by Moghuls.
Hence to protect the belief and still go ahead with idol worshipping a concept of coloring a stone by orange color came into existence.
If you will visit many Hindu old temples, you will observe how badly they were destructed by Moguls (largely in North India, Rajasthan, Gujrat and Maharashtra)
There are many reasons of such attacks
a) Projecting victory of Islam over Indus culture (Hindu)
b) Islam prohibits the Idol worship
3)If there is no structure and just worship of a stone then it would reduce attacks on the temples and villages, was the concept behind stone worship. And it actually reduced the attacks. IT is observable that post medieval period building big temple structure got reduced in North India, which then moved to Bhakti Cult in India (Saints like Meerabai, Surdas, Tulasidas, Dnyaneshwar, Tukaram, Namdev, Kabir in North and Purandaradas, Shyama Shastri, Tyagraj, Andal etc in South)
4) There are references when the idol of “Tulaja BHavani” at Tuljapur and “Vithoba” of Pandharpur were moved away from its original worship place so that the idol will be protected from the attacks by Adilshah/ Nizamshah and Aurangazeb
5) Many a times at the outskirt of the villages a stone like structure in memory of the martyr called “Veergal” was kept, slowly the Veergal making became difficult since it required a lot of artistic skill, people started keeping a stone and color them with orange.
6) Few of the demonic figures of mythology such as Mhasoba / Mahishasura, Veeroba, Mhatoba etc are orange colored stones kept on the border of the village
I am not against any religion or for any religion I have tried to put in the neutral point of view.