What does 'blasphemy' mean? Why does it seem like it's in novels? (In layman's terms)

"Blasphemy" usually referred to disrespect or blasphemy against gods, sacred objects, and so on. In novels, it may refer to scenes, plots, or characters that describe or imply disrespect or blasphemy toward some mysterious power or existence. To determine whether there was profanity in the novel, one could observe the plot, characters, dialogue, and other aspects of the novel. If a plot or character in a novel shows disrespect or blasphemy towards some mysterious power or existence, then it may have a blasphemous meaning. Of course, there could also be other reasons for the profane meaning in the novel, such as the setting of the novel or the setting of the characters.