Remain Calm even in difficult situations

This hadith is about the presence of Prophets, Siddiqs and Martyrs in a place called Hira. It was narrated by Abu Hurairah [may Allah be pleased with him] that the Messenger of Allah was at Hira along with his companions such as Abu Bakr, 'Umar, 'Uthman, 'Ali, Talhah and Az-Zubair [may Allah be pleased with them all]. When they were there the boulder shook which made them scared but then the Prophet said "Be calm for there is none upon you except a Prophet or a Siddiq or a martyr". This hadith teaches us to remain calm even in difficult situations because we are never alone as long as we have prophets who guide us to do good deeds and siddiks who help us stay on track and martyrs who sacrificed their lives for our sake.