What is the function of a subplot in a story?

A subplot serves to provide additional layers of depth and complexity to the main narrative. It enriches the overall story by exploring secondary themes, character relationships, or situations that may not be directly related to the primary plot. This added complexity allows for a more nuanced exploration of the characters' motivations and the themes of the story, enhancing the reader’s engagement and understanding.

Subplots can also create tension or contrast with the main plot, thereby allowing for greater emotional impact or insight. By including a subplot, an author can address various facets of the human experience and provide a more rounded and immersive story. This makes the narrative more dynamic, as the interplay between the main plot and the subplot can lead to character development and thematic exploration that resonates more fully with the audience.