This is a very useful hadith in which it mentions the most important issues in Islam i.e. pillars of Islam, pillars of Iman, pillars of Ihsan and signs of the Day of recompense. In this hadith, Angel Jibreel came to the Prophet Muhammad in a human body and asked him about some issues. The prophet answered all of his questions. All of that happened in the presence of some Companions. All people ought to understand meanings of this hadith, for it illustrates bases of the Islamic Creed in general.