2641. As for the "furnace" mentioned there, it is a large round wooden tub into which people seem to themselves to be thrown and rolled around in such a way as to fall out, and are again thrown in. To depict when they are dying, they are spewed out. It is denied that he made them cross through the fire or burning furnace, for to bring on each other by fantasies an image like that is forbidden in hell, because they are thereby tormented most gravely. For they dread extremely the fantasy of fire.