The Hajj is one of the five Pillars of Islam, which are the five fundamental religious duties that all Muslims must perform. The Hajj is a pilgrimage to Mecca, Saudi Arabia, which is the holiest city in Islam. It is a spiritual journey that involves visiting the Kaaba, the holiest site in Islam, and performing various rituals. The Hajj is an important part of Islamic faith and culture, and it is seen as a way to strengthen the bond between Muslims and their faith.