The rustic Hindu firmly believes that in the absence of a man's proper soul in a dream his body is occupied by some strange and consequently malignant ghost. Hence come the nightmare and evil dreams. Thus the Korwas of Mirzapur believe that a Bhûtin or dangerous female ghost named Reiyâ besets them at night under the orders of some witch, and attacks people's joints with the rheumatism. The Majhwârs believe that the Râkshasa attacks them in dreams. He comes in the shape of an old man with enormous teeth, brown of colour, with black, entangled hair, and sometimes swallows his victims. It is fear of him that brings the fever, and he can be exorcised only by the Baiga with an offering of rice and pulse. The Dâno also comes in dreams, squeezes a man's throat, and stops his breath. The Bhuiyârs have adopted from the Hindu mythology Jam or Yama as one of their dream ghosts. He sits on his victim's breast in sleep, and it is impossible to shake him off or make an alarm. Sometimes these night ghosts come as tigers, wolves, or bears, and hunt a man down in his sleep.
On the same principle the shadow of a man is believed to be part of a man's soul, and may be separated from him, injured or wounded by an enemy. Hence it is considered dangerous to tread on the shadow of a man in the sunshine. Buddha is said to have left his shadow in the cave at Pabhosa, where he killed the Nâga. [473]
The same is the case with looking into other people's mirrors, because you may chance leave behind your reflection, which is part of your soul. As we have seen, this is the basis of much of the theory of water spirits, which lurk in water holes and seize the reflection of anyone who looks into them. The Sunni Muhammadans in Bombay cover up all the looking-glasses in a house when a person is sick, as the soul, which is just then on the prowl, may be absorbed, and leave its owner a corpse.
Lastly, the same theory accounts for the disinclination which rustics have to being painted or photographed. Some of the soul goes out in the image and does not return. There is a rest-house on the Asthbhuja Hill at Mirzapur which was many years ago presented to the Europeans of the station by a wealthy banker. He was overpersuaded to allow his picture to be painted, and fell into a lingering consumption, of which he soon after died.