Gaya derives its name from the mythological demon Gayasur (which literally means Gaya the demon), demon (asur, a Sanskrit word) and Gaya. Lord Vishnu killed Gayasur, the holy demon by using the pressure of his foot over him. This incident transformed Gayasur into the series of rocky hills that make up the landscape of the Gaya city. Gaya was so holy that he had the power to absolve the sins of those who touched him or looked at him; after his death many people have flocked to Gaya to perform Shraddha sacrifices on his body to absolve the sins of their ancestors. Gods and goddesses had promised to live on Gayasur's body after he died, and the hilltop protuberances of Gaya are surmounted by temples to various gods and goddesses. These hilltop temples at Rama Shila, Mangla Gauri, Shringa Sthan and Brahmayoni are part of the pilgrimage circuit.