The imagery of treasure and fortune typically helps to establish the theme of wealth and materialism. This theme often explores the pursuit of riches, the desire for material possessions, and the potential consequences of prioritizing wealth above all else. The imagery of treasure and fortune can symbolize the allure of worldly goods, the quest for success and prosperity, or the dangers of greed and obsession with material wealth. It can also delve into broader themes such as the true value of wealth, the emptiness of materialistic pursuits, or the contrast between wealth and other forms of fulfillment and happiness.