The line of thought referred to the series of thoughts and ideas that the author had when writing a novel, from the beginning of the story to the end. It was a very important part of the process of writing a novel. It could help the author better plan the plot, shape the characters, and express the theme. The author would usually first determine the overall structure of the novel, including the main plot, the development of the plot of each chapter, the relationship between the characters, and so on. Then, the author would think about the characters and emotional expressions in the novel, as well as how to express the theme through the plot and characters. At different stages of writing, the author would also consider some small problems such as how to arrange the chapter title, the transition between the paragraph, and so on. Writing ideas were a very important part of the process of writing a novel. It could help the author better plan the plot, shape the character image, and present the theme.