The idea of an essay was a very important part of the writing process. It determined the theme, structure, and content of the essay. The following are some key points to pay attention to when writing an essay: 1. Decide on the theme: Before you start writing, you need to determine the theme of the essay. The topic should be related to one's interests, experiences, values, etc., and should have a clear scope and limitations. After determining the theme, he could start to think about the content and structure of the essay. 2. Decide on the train of thought: After determining the theme, you need to think about how to develop your train of thought. He could start from the following aspects: - Decide on the central idea: analyze the background, meaning, and impact of the topic to determine the central idea and use it throughout the essay. - Decide on the writing focus: After determining the central idea, you need to determine the focus of the writing, that is, the core point and main content to be expressed. - Decide on the composition level: Decide on the structure and level of the composition and divide the content into different parts for narration and analysis. 3. Extending the train of thought: After determining the train of thought, you can begin to develop the train of thought to conceive the content and structure of the essay. He could start from the following aspects: - Decide on the narrative style: According to the theme and writing focus, determine the narrative style, including direct narration, indirect narration, contrast narration, etc. - Decide on the way to describe: According to the theme and focus of the writing, determine the way to describe, including details, environmental description, psychological description, etc. - Decide on the way of discussion: According to the theme and writing focus, determine the way of discussion, including positive discussion, negative discussion, contradictory discussion, etc. 4. Organizing the train of thought: After determining the train of thought, you need to organize the train of thought to form a complete composition structure. He could start from the following aspects: - Decide on the beginning and the end: The beginning should attract the reader's attention and the end should summarize the whole text and leave a deep impression. - Decide on chapters and passages: Each chapter and paragraph should have a clear theme and content and should be closely linked to other chapters and passages. - Decide on sentences and words: Each sentence and word should have a clear purpose and should be closely connected to other sentences and words.