The author, Jeffrey Eugenides, uses the imagery of figs piled on the pier to illustrate the process of ripening and transformation. Before the actual fire, there is a gradual buildup of heat that signifies anticipation. This metaphor suggests that moments of change come with an initial phase that is full of potential, where the raw material starts to develop its richness.
As the figs begin to undergo this process, they release juice and bubbles, symbolizing the sweet rewards that come from the heat of preparation. The mingling of sweet fig scent with smoke highlights the complexity of flavors and experiences that emerge from this transformation, demonstrating how initial conditions can lead to something extraordinary.