Even in the most hidden and sacred places of the medieval cathedral we still find representations of Satanic power in which profanity and obscenity run riot.

In these representations the painter and the glass-stainer vied with the sculptor.

Among the early paintings on canvas a well-known example represents the devil in the shape of a dragon, perched near the head of a dying man, eager to seize his soul as it issues from his mouth, and only kept off by the efforts of the attendant priest.

Typical are the colossal portrait of Satan, and the vivid picture of the devils cast out of the possessed and entering into the swine, as shown in the cathedral-windows of Strasburg.

So, too, in the windows of Chartres Cathedral we see a saint healing a lunatic: the saint, with a long devil-scaring formula in Latin issuing from his mouth; and the lunatic, with a little detestable hobgoblin, horned, hoofed, and tailed, issuing from HIS mouth.