Pishachas (Sanskrit: पिशाच, Piśāca) are flesh-eating demons in Indian religions, appearing in Hindu and Buddhist mythologies.
Pishachas like darkness and traditionally are depicted as haunting cremation grounds along with other monsters like bhutas and vetālas.
Sometimes, they possess human beings and alter their thoughts, and the victims are afflicted with a variety of maladies and abnormalities like insanity.
Certain mantras are supposed to cure such afflicted persons and drive away the pishacha possessing that particular human being.
[3] According to the Royal Institute Dictionary, the Thai term "ปิศาจ" (pisat), from Sanskrit, pishacha, is defined as "ghost" (ผี).