This document discusses Greek myths and the concept of metamorphosis within myths. It explains that myths were ancient stories that sought to explain natural phenomena or human actions, often involving gods and heroes. The document notes that metamorphosis, or a change in form or shape, was a common element in Greek myths and allowed gods like Proteus to change their shape into animals like fish, lions or snakes. It provides an example of the love story of Pyramus and Thisbe to illustrate this concept of metamorphosis in myths.