Then there are the really exotic hands, which are turned into a visual feast. Fig. 7 shows and an arm that was turned into the body of a dragon, while the hands in Fig. 8 (which look like ladies’ gloves) are attached to the wrong location on the human body. These hands are not just meant to point out an important passage, they must also have been intended to bring a smile on the reader’s face.
Far beyond this, they're most likely used as mnemonic devices to associate the important information with a more memorable image for storing in one's memory palace.
