This passage is about filial piety: be considerate when serving parents. In order to make your father sleep well, Huang Xiang (nine years old), 24, will help him cool his bed before going to bed in summer and warm his bed when it is cold in winter, which is really worth learning. After getting up in the morning, you should visit your parents first and say hello to them. After returning home in the afternoon, you should tell your parents what happened outside today, and report your safety to your parents to reassure the elderly. When you leave home, you must tell your parents where you are going. When you get home, you must report to your parents in person to reassure them. At ordinary times, we should keep the normal routine and do things regularly. Don't change it at will so as not to worry your parents.