The Eye of Ra could also be invoked to defend ordinary people. Some apotropaic amulets in the shape of the Eye of Horus bear the figure of a goddess on one side. These amulets are most likely an allusion to the connection between the Eye of Horus and the Eye of Ra, invoking their power for personal protection. In addition, certain magical spells from the New Kingdom involve the placement of clay model uraei around a house or a room, invoking the protection of the solar uraeus as in the temple rituals. These uraei are intended to ward off evil spirits and the nightmares that they were believed to cause, or other enemies of the house's occupant. The spell says the models have "fire in their mouths". Models like those in the spells have been found in the remains of ancient Egyptian towns, and they include bowls in front of their mouths where fuel could be burnt, although the known examples do not show signs of burning. Whether literal or metaphorical, the fire in the cobras' mouths, like the flames spat by the Eye of Ra, was meant to dispel the nocturnal darkness and burn the dangerous beings that move within it.