Read the following excerpt from an analytical essay:

"In the literature of the 21st century, there is a noticeable shift towards exploring subjective realities. Authors are increasingly focusing on nuanced perspectives, emphasizing the complexity of individual experiences. This stylistic choice not only captures the fragmentation of modern life but also aligns with postmodern ideals that challenge conventional storytelling. By prioritizing character emotion over plot progression, contemporary writers invite readers to engage deeply with the psychological landscape of their characters. This evolution underscores a broader cultural trend where understanding diverse viewpoints becomes essential in fostering empathy and challenging societal norms.”

Based on the analysis provided in this excerpt, what is the primary purpose of the author’s examination of modern literary trends?