question #1 Sahih Muslim 336g, Book 6, Hadith 100 : What is the significance of performing multiple rak’ahs of prayer during important events in Islam?

Abu Murra narrated on the authority of Umm Hani that the Messenger of Allah (ﷺ) on the day of the Conquest of Mecca observed in her house eight rak’ahs of prayer in one cloth, its opposite corners having been tied from the opposite sides.