The texts discuss the presence and role of "ảo" elements, meaning imaginary or fictional, in various literary works. These elements can be seen in names of places and characters, as well as in the structure and development of stories. They also explore the combination of "ảo" and reality in storytelling, and how they contribute to the overall meaning and significance of the works. Additionally, the texts mention specific examples, such as Rạch Khê Răng and Ngô Tử Văn, that embody this theme and its impact on literature. Furthermore, they raise questions about the nature of these elements and their purpose in storytelling.