What is the principle of keeping a diary immediately?

Writing a diary immediately applies the principle of narrative. According to relevant information, diary refers to the carrier used to record its contents. As a style, it belongs to the narrative practical writing. The content of diary comes from people's observation of life, which can be recorded and written about people, things, scenery and activities. Everything you do, see, hear and think in a day can be the content of a diary. Diary also refers to a daily notebook or a record of things you encounter and do every day. Diary contains people's true feelings, and some people find that diary is a book to record their inner world, a book to record their thoughts, and a summary of their day.