In many myths, such as those in Greek and Roman traditions, gods frequently alter their forms to interact with mortals. This transformation allows deities to blend into the human world, facilitating lessons or tests on virtue, hospitality, or morality. Notable examples include gods disguised as travelers or animals, as seen in stories like Zeus visiting earth or Apollo's various incarnations. These shape-shifting narratives serve to illustrate the idea that divine beings are not entirely detached from human experiences and emotions, often intertwining their fates with those of mortals.